Select the word or phrase that makes this sentence grammatically correct. Everyone thought that was the ___ test of the whole course.
Correct Answer: B
Rationale: The correct answer is B: easiest. In this sentence, "easiest" is the superlative form of "easy," indicating the highest degree of ease among the options. "Most easiest" (A) is redundant, as "most" and "superlative form" both convey the same comparative meaning. "Easy" (C) is a simple adjective, not a superlative form. "Most easy" (D) is incorrect as "easy" is already a comparative form, so adding "most" is unnecessary. Hence, "easiest" is the correct choice for making the sentence grammatically sound.
Nokea