A. with
B. to
C. for
D. in
🧠 Explanation:
In the phrase “You must attend __ it,” the blank is filled by “to,” as in “attend to it.” This preposition conveys addressing or handling a task or responsibility, as in “Attend to your duties.” It’s a common English expression, emphasizing action or focus. Understanding this usage improves clarity in professional and everyday communication, especially in instructions or formal writing. Prepositions like “to” are essential for grammatical accuracy, ensuring precise expression of obligations or attention in contexts ranging from workplace directives to personal responsibilities.