Causes are not an origin of mental retaration. a. organic b. environmental c. adaptive d. unknown select the best answer from the choices provided a b c d

The correct answer is c

If it's a smaller child or infant, place one on the middle of the chest and on the child's back. (if it is a bigger child with enough room for two, place one on the upper right/your left of the chest, and one on the lower left/your right) the pads should never touch each other. 

Answeradults have more control over their lives;