Choose the correct form of adjective for the given sentence.
He is a ______ member of the team. He is willing to give his time and energy to anything he undertakes to do.

Here in the sentence, we need an adjective to qualify the noun member of the team.
Now let's understand the meaning of the options:
- Compassionate(adj): With sincerity; without pretense
- Callous(adj): Emotionally hardened
- Committed(adj): Bound or obligated, as under a pledge to a particular cause, action, or attitude
- Insincere(adj): Lacking sincerity We need a positive attitude member of the team who is willing to give his time and energy to anything he undertakes to do.
After understanding the meaning of the sentence and the options we can say that committed is the most appropriate choice for the given blank.
Hence, option 3 is the correct answer.
The correct sentence is: He is a committed member of the team. He is willing to give his time and energy to anything he undertakes to do.