Which Statement Concerning Culture and Crawling Is True

Multiple Choice

Which statement concerning culture and crawling is true?

A) Most North American children are crawling at much younger ages than in past decades.
B) There are no known cultures that discourage motor development.
C) As it is genetically programmed, experience does not impact the rate of the acquisition of crawling.
D) The more practice infants get at crawling, the faster they tend to crawl.