Respuesta :
Answer: Option (A) is the correct answer.
Explanation:
A seesaw is a simple machine which has a long board and on a fixed part it is balanced in the middle.
For example, a seesaw on which children play in the park is balanced at the middle on a fixed point so that children sitting on both the sides can move up and down with the same force.
Thus, we can conclude that seesaw is a simple machine type of machine.
