In Front of Chris,Tasha Pours the Same Amount of Water

Multiple Choice

In front of Chris,Tasha pours the same amount of water into a short,fat glass and a tall,thin glass.She then asks Chris which glass has more water.If Chris is at the concrete operational stage,he is likely to answer:

A) the tall, thin glass
B) the short, fat glass
C) neither glass
D) that he does not understand what more means