Detailed Instructions: Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
Q: Question: Does metformin Treatment Affect Testicular Size in Offspring Born to Mothers with Gestational Diabetes?
Answer: Prepubertal testicular size did not differ between offspring born to metformin-treated mothers and those born to insulin-treated mothers.
A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
no