Explanation:
(A) get at → means to discover or uncover (the truth).
“I hope the inquiry will get at the truth.”
(B) get by → means to manage or survive with limited resources.
“We could never get by on my salary alone.”
(C) get on → means to manage or cope in a situation.
“However will we get on without you!”
(D) get through → means to use up or consume completely (money/resources).
“He can get through his month’s salary in just one weekend.”
Based on standard meanings and contextual usage, the correct matching is:
(A)–(II), (B)–(IV), (C)–(I), (D)–(III)
This corresponds to Option 3, which is grammatically and semantically correct.
Important note:
NTA’s official answer key has marked Option 2 as correct. Hence, we will follow NTA's answer-key (so that you can suffer the same trauma as your seniors).