The early humans way of life made it impossible for them to live in which kind of shelter?

a.) rock shelters in cliffs
b.) tents
c.) permanent homes
d.) caves

What are your thoughts about " the attacking on the twin towers". in your own words a little paragraph its for a project i am doing and i want to get intel from other people so that i can put it on my poster. for anyone who gives me there opinion on it : ) enter you name when you type the paragraph more than one person to respond.