Correct option is C
The correct answer is
(c) Naïve.
Explanation:
"Gullibly" is derived from "gullible," which means easily deceived or tricked. The synonym is "naïve," which refers to someone who is innocent or unsuspecting and likely to be deceived.
Meanings of all options:
·
Immunity: Protection or exemption from something, especially a disease or legal consequences.
·
Fraternity: A group of people sharing a common profession or interests, or a brotherhood.
·
Naïve: Showing a lack of experience, wisdom, or judgment; easily fooled.
·
Critical: Expressing adverse or disapproving comments or judgments; important.