Myrtle McGraw's Studies, Teaching Twins Jimmy and Johnny to Roller

Multiple Choice

Myrtle McGraw's studies, teaching twins Jimmy and Johnny to roller skate and other activities, showed that you can

A) teach premature infants to swim.
B) speed maturation through exercise.
C) speed motor development with exercise, but to a limited extent.
D) speed motor development with exercise, but it can lead to malformation of limbs.