For $2995, the "Widget-For-Your-Infant DVD" Promises to Vastly Improve Your Infant's

For $29.95, the "Widget-for-Your-Infant DVD" promises to vastly improve your infant's abilities by using neuroscience principles to increase the number of synaptic connections in your infant and selectively prune unnecessary connections.Based on your understanding of neuroscience, you are skeptical because you know that:

A) research has shown that several more expensive DVD programs are better
B) development is determined by experiences at certain critical periods, and so watching DVDs is useless
C) the patterns and pruning of synapses in infants are mostly influenced by genetics
D) DVDs have not been found to work as well as using structured classical music