'One who possesses many talents'

One word substitute for the given word is?

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

The quality or state of being exposed to the possibility of being attacked or harmed

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

The child (would have jumped) with delight on seeing the joker at the circus.

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".
Would you mind (to carrying) this bag for me.

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
Call it a day

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase.
Barking up the wrong tree

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.

Supple

In the following question, out of the four alternatives, select the word opposite in meaning to the word given.

Sultry

In the following question, out of the four alternatives, select the word similar in meaning to the word given.

Suffix