A、To buy a car. B、To help the man. C、To rent a car. D、To go outside. C男士询问女士有什么可以帮忙的，女士表示她想租辆车去旅游。由此可知，女士想要租辆车，因此确定C项“想要租车”为本题答案

W: Jack, I didn’t see you this morning.
M: I was late for school because I missed the first bus.
Q: What can we learn from the conversation?

M: Excuse me, what can I do for you?
W: I want to rent a car to travel around.
Q: What does the woman want to do?