which of the following statements is not true? "whom" can serve as the object of a preposition."whom" is an object pronoun."who" and "whom" are personal pronouns."who" is a subject pronoun.i really need !

Which line from “a simple way to create suspense” best supports the central idea that writers should not give their readers answers too quickly? a. the reader learns to chase, and the momentum becomes unstoppable. b. so writers are taught to focus on ingredients and their combination. c. we had to invent a solution to the serious problem it posed. d. thus the principle works in a micro sense, as well as in a macro one.