A Girl Is Sitting on the Edge of a Pier

Multiple Choice

A girl is sitting on the edge of a pier with her legs dangling over the water.Her soles are 80.0 cm above the surface of the water.A boy in the water looks up at her feet and wants to touch them with a reed.(nwater = 1.333.) He will see her soles as being:

A) right at the water surface.
B) 53.3 cm above the water surface.
C) exactly 80.0 cm above the water surface.
D) 107 cm above the water surface.
E) an infinite distance above the water surface.