Idioms and Phrases - Verbal and Reasoning

In the following questions four alternatives are given for the idiom/phraseitalicised and underlinedin the sentence. Choose the alternative which best expresses the meaning of idiom/phrase.
Q1:

When he heard that he had once again not been selected he lost heart.

A became desperate

B felt sad

C became angry

D became discouraged

ANS:D - became discouraged

No answer description is available.