Answer:
b) uterus.................
Growing muscle, or you haven’t been used to doing leg exercises
B makes the most sense to me so I would go with that
<span>The most common listening problem is A. paying attention but misinterpreting the message. It is a problem that happens all the time - you think that the person you are talking to understands what you are trying to tell them, however, they don't really, and that can cause and issue, or sometimes even a conflict. This is why you need to speak clearly and often ask people whether they understand your message so as to avoid problems.</span>
About 74% of earth's surface is covered by water.