Eight-Month-Old Darius Has Just Started to Crawl

Multiple Choice

Eight-month-old Darius has just started to crawl. When placed on the depth perception apparatus, what will he likely do when he comes to the "edge" of the apparatus if his dad is calling for him to cross over?

A) He will stand up and walk across the "cliff."
B) He will ignore his dad and turn around.
C) He will continue crawling across the "cliff" and go to his father.
D) He will stop just short of the "cliff" and stay there.