Teacher:In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Teacher: Now, understand the problem? Solve this instance: [header] How to protect against bond risks [title] Choose bonds with a solid rating and credit ranking. [step] Do some research on the standard and poor's ratings service for current bond ratings and the municipal securities rulemaking board's (msrb) electronic municipal market access (emma) website. A bond with a rating of bb or higher has been issued by a company found to be in good credit and financial standing. <sep> (A) [substeps] Msrb stands for global credit rating (d). Upon approval of a bond, conditional bonds can be developed. (B) Protected with a rating and rating for bb or higher, it is often sold at a low rate of interest. Sellers can start by seeing the highest grades, as they know you are willing to pay more. (C) [title] Ensure the market value of the bond is worth at least 15 %. [step] Bonds bought in the low-range find the lowest% as the industry refuses to make much use of them. (D) [title] Ask your broker for information on the disclosure methods and history of the bond issuer. [step] An issuer that fails to supply information on its current financial status should be considered a high risk.
Student:
D