Given a text T, and several options, according to the question posed in the text T to choose the most appropriate option from the options as the answer, please directly output the most appropriate option, do not need to output the explanation.

The expected loss for a given debt instrument is estimated as the product of default probability and:
Option A:(1 + Recovery rate).
Option B:(1 – Recovery rate).
Option C:1\/(1 + Recovery rate).

Answer: B