B. The curtains on the windows of a bedroom.
The rest of the choices are not man-made which would not be infrastructure.
It's true, Venezuela is the biggest supplier of oil to the U.S, also other countries like Saudi Arabia, Canada, Nigeria and Mexico.
Answer:
hill is a natural landform that extends above the surrounding terrain whereas a mountain is a large natural landform that extends above the surrounding terrain, usually forming a peak.
C. because the lines are more spread out
