Answer:
C). 3.
Step-by-step explanation:
A complete sentence is described as a sentence that offers a complete and accomplished thought in itself. Such a sentence comprises of a subject followed by a predicate that offers the details or description regarding the subject. These sentences assist in conveying the intended thought clearly and effectively.
As per the question, there are three complete sentences offered in the given passage that are making complete sense in themselves. All these three sentences comprises of a subject and predicate and successfully convey the accomplished thoughts independently without relying on another sentence to accomplish its meaning. Therefore, option C is the correct answer.