Topic: Antonyms, Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The term "fallacy" refers to a mistaken belief, misconception, or logical error. It signifies a deviation from truth or sound reasoning. Therefore, the antonym of fallacy would be a concept that embodies truth or reliability. Among the given options, "Trust" (option A) stands out as the most fitting antonym.

Trust implies a sense of confidence in the reliability, truth, or ability of someone or something. When one trusts, they believe in the accuracy or honesty of a person’s words or actions, suggesting a commitment to a correct understanding or belief. In contrast, a fallacy undermines that confidence, leading to doubt and misconception.

The other options—Abandon (B), Oblique (C), and Freedom (D)—do not connect directly with the concept of truth or logical reasoning. "Abandon" relates to relinquishment, "Oblique" pertains to indirectness or ambiguity, and "Freedom" signifies liberation but does not specifically address truth or reliability. Hence, "Trust" is the best choice, illustrating the core opposition to the erroneous nature of a fallacy by emphasizing belief in truth.