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

Best Answer Explained in Below-:

The term "concord" refers to a state of agreement, harmony, or unity among individuals or groups. It suggests a peaceful coexistence and a cooperative relationship, where differences are set aside for a common purpose or understanding. In contrast, the word "conflict" embodies the opposite idea, representing a situation where there is disagreement, hostility, or discord.

When evaluating the options provided, "agreement," "friendship," and "assistance" all connote positive interactions, reinforcing the idea of unity or cooperation rather than opposition. "Agreement" signifies a consensus or mutual understanding, "friendship" indicates a bond characterized by support and affection, and "assistance" highlights a willingness to help one another. None of these words reflect a departure from harmony.

In stark contrast, "conflict" directly opposes the concept of concord, indicating a clash of interests, ideas, or values. This term encapsulates the essence of disagreement and struggle, making it the most fitting antonym for "concord." Therefore, the correct choice is B) conflict, as it best represents the antithetical nature of the term.