Red Blood Cells Are Placed into Three Solutions, Each Solution

Multiple Choice

Red blood cells are placed into three solutions, each solution a different concentration of NaCl. One solution is isotonic, one is hypotonic and one is hypertonic with red blood cells. In which solution have the blood cells undergone crenation?

A) solution A
B) solution B
C) solution C
D) solutions A and C
E) solutions B and C