Which of the following sentences is grammatically correct?

Option B is the correct answer. It uses the proper structure and grammar to convey the intended meaning. The verb "deems" is correctly followed by "it," which acts as a placeholder for the clause that explains what is deemed inappropriate. The phrase "for employees who arrive late" uses the relative pronoun "who," which is appropriate when referring to people, and "arrive" agrees with the plural subject "employees." Additionally, "to question company policies" correctly uses the infinitive form of the verb to indicate the action being criticized. This option is clear, concise, and adheres to standard grammar rules, making it the correct choice.

Option A: Uses "which" instead of "who," which is incorrect when referring to people.
Option C: Uses "that arrives," creating a subject-verb agreement error ("employees" is plural).
Option D: Omits "it," making the structure incomplete.
Option E:  Here, "which" is used incorrectly for people, and "arrives" doesn't agree with the plural subject "employees."