A、He thinks Laura can take a taxi next time. B、He is tired of waiting for buses. C、He insists that Laura should set off earlier.

M: Steven Hawking warns that humans will have to move to other planets for survival in near future. It really astonishes many people.
W: He’s never exaggerating. Humans are likely to meet that day if they go on destroying the environment.
Q: What does the woman mean?

W: I wish Laura would call me when she knows she will be late. It’s the third time that we have to wait for her.
M: I can’t agree with you more, but she has to transfer buses and you never know how long she has to wait for the next one.
Q: What can we learn from the man?