The picture is not that clear but A is probably the answer.
Synonyms may help people to figure out meanings by known words. If a word's meaning is unknown, atleast one of the synonyms must be a known word. So, the meaning of the unknown word can be explained by the meaning of the known synonym, as a synonym is an alternative word with the same meaning.
Answer
it would probably grow.
Explanation:
saying a lie makes his nose grow, so he said a lie and it grows, simple as that.
