Choose the word which best expresses the meaning of the given word. Protract

Choose the word which best expresses the meaning of the given word: $Caustic$.

Pick up the one which is most nearly the same in meaning as the word highlighted.
When he could not endure the cruel ragging any longer,the new recruit bravely $stood\, up\, to$ all his bullying seniors.

Pick up the one which is most nearly the same in meaning as the word highlighted.
He is $averse$ to the idea of holding elections now.

Choose the word which best expresses the meaning of the given word. $Stranded$

Choose the word which best expresses the meaning of the given word: $Sumptuous$.