I believe the answer is A. This is because the sentence is supposed to be parallel and all of the verbs(except for hiss) have to be past tense.
Explanation:
OTA: Over- the- Air
IMA: indian military academy
NDA: National democratic alliance
NCC: National cadet corps
BSF: Border security force
CRPF: Central reserve police force
hope it helps☺☺
C, since the reader can focus on the more important details of the text, rather then the fluff in the beginning
