Topic: Voice,

Best Answer Explained in Below-:

The sentence "The cow gives us milk" is an active voice statement that clearly indicates a subject (the cow) performing an action (giving) to an object (us, the recipients of the milk). When transforming this sentence into passive voice, the focus shifts from the doer (the cow) to the action itself (the giving of milk) along with the recipients.

Option C, "Milk is given to us by the cow," accurately rephrases the original sentence in the passive voice. It maintains the key elements; "milk" becomes the subject, emphasizing the action and the object receiving it while correctly attributing the action to "the cow."

In contrast, Option A ("We are being given milk by the cow") and Option D ("Milk is being given to us by the cow") introduce variations in tense that imply an ongoing or temporary action, which was not expressed in the original statement. Option B ("We were given milk by the cow") changes the tense to past, which alters the meaning as well. Thus, Option C is the only choice that faithfully conveys the original intent and structure while achieving the passive voice transformation correctly.