Investment banks primarily raise capital for clients by acting as intermediaries between issuers and investors. They underwrite new securities, help structure and price offerings like IPOs and follow-on financings, and distribute these securities to the market, while also providing advisory services on corporate finance, mergers and acquisitions, and capital strategy. This role focuses on connecting those who need funding with those who have money to invest, rather than accepting deposits or issuing insurance. So the description that emphasizes assisting entities in raising financial capital by bridging issuers and investors is the best fit.

Perpetual bonds are defined by having no maturity date. They promise to pay a fixed stream of coupons forever and never repay the principal, so there is no finite end to the bond’s life. That’s why the description fits bonds with no maturity date—the payments continue indefinitely. From a pricing perspective, you value an endless series of cash flows. If the bond pays a constant coupon C each period and investors require a yield r, its price is roughly C divided by r, reflecting the ongoing, never-ending payments. The other descriptions don’t fit perpetual bonds: a bond with a fixed maturity ends at some date, a bond that pays no coupons has no ongoing income, and bonds issued by central banks aren’t what defines a perpetual bond.

The key idea is recognizing where bond market data originates, especially data about new securities entering the market. New issue information is the primary source that describes bonds being issued—details like issue size, coupon, maturity, pricing, and underwriters. This data directly informs traders and researchers about what new bonds are available and how they’re priced, making it the most relevant bond market data source in this context. Treasury reports, while containing government debt and auction results, are official statistics rather than a direct feed of bond market data used for pricing and research. Ratings information provides credit quality assessments, which matter for valuation but aren’t a market data feed about the issue itself. Short-term interest rates reflect current borrowing costs and market conditions, but they aren’t specific data about a particular bond issue entering the market.

Level 2 data expands on Level 1 by showing the full depth of the market: it reveals not just the current best bid and best offer, but multiple price levels on both sides of the book and the size available at each level. This means Level 2 includes the Level 1 information and adds the listing of nearby bids and offers along with their volumes, giving a clearer picture of supply and demand at different prices. The other options don’t fit because Level 2 isn’t simply a duplicate of Level 1, it doesn’t focus only on historical trades, and it certainly doesn’t omit bids and offers.