Select the most appropriate option to fill in the blank.
______ was present in the hall took part in the voting process.

Correct option is A

The correct option to fill in the blank is "Whoever."
· "Whoever was present in the hall took part in the voting process" correctly uses "whoever" to refer to any person who was present, making it inclusive and appropriately linked to the action described.
· "Whoever" functions as a pronoun that can be used as the subject of a verb, fitting seamlessly into the sentence structure here.
· Other options:
· (b) "Whichever" is used for choosing between alternatives, not applicable here.
· (c) "Wherever" and (d) "Whatever" are also incorrect as they do not correctly refer to people.