5. Simple machine is a tool used to make our work easier, faster and comfortable.
Which of the following characteristics/uses best describe an inclined plane?
A. It is a plane tilted at an angle, with one end higher than the other.
B. It is straight or curved rigid bar that is free to turn about a fix point.
C. It is composed of a cylindrical body with a spiral ridge called thread.
D. It is composed of one or two inclined planes that meet each other to form a sharp
edge.

help plsssssssss~_~​