B and C. When solving run-on sentences, either add a connective like and, or start a new sentence.
After age 20 you lose about a gram of brain mass per year.
Answer:
got fat
Explanation:
We got fat during our vacation. In this sentence we use got because got is the second form of get. We can't use have grown due to its first form of verb. In the above question, they asked us to use past participle which means second form of verb in the sentence and we know that got is the second form of verb so that's why we can use got fat word instead of have grown in the sentence.
