The correct answer is D. 2134.
The first option, 2413, is incorrect because the word “was” comes before the word “occupied.” The second option, 3214, is incorrect because the word “occupied” comes before the word “was.” The third option, 2143, is incorrect because the word “every” comes after the word “occupied.” The fourth option, 2134, is correct because the words “every,” “occupied,” and “was” are in the correct order.
The word “every” is an adjective that means “all of the members of a group or class.” The word “occupied” is a verb that means “to take possession of or control (a place or position).” The word “was” is a verb that is used to indicate the past tense.
In the sentence “Every seat was occupied,” the word “every” modifies the noun “seat.” The word “occupied” modifies the verb “was.” The word “was” indicates that the action of occupying the seats took place in the past.