Why was the following sentence written in passive voice? “The moon rock was displayed by the museum.” A. The subject is unknown.
B. The object is the most important part of the sentence.
C. None of these. This sentence should be rewritten in active voice.
D. The verb is the most important part of the sentence.

B

Explanation:

"The passive voice is used to show interest in the person or object that experiences an action rather than the person or object that performs the action. In other words, the most important thing or person becomes the subject of the sentence."

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onto a large boat, and mark the water level that the boat sinks to. then, take the elephant out and put a bunch of marked weights onto the boat until it reaches the same water level. add up the masses of the weights to get the weight of the elephant.