Mahori was strapped to his mother’s back for the fi rst year of his life. Which of the following statements is true?  a. Mahori’s parents gave him extra “tummy time” to develop his muscles.  b....

Mahori was strapped to his mother’s back for the fi rst year of his life. Which of the following statements is true?

 a. Mahori’s parents gave him extra “tummy time” to develop his muscles.

 b. Mahori’s motor development will be similar to an American child if they are compared during kindergarten.

 c. The sequence of his motor development will be different from that of babies in cultures where walking during infancy is actively encouraged.

d. When it comes to Mahori’s motor development, environment plays a stronger role than genetics.