If 0 < ab < ac, then which of the following must be true?
A. abc > 0
B. c^2 - b^2 >0
C. |b| > |c|
D. abc < 0
E. |a|/a = 1
A. abc > 0
B. c^2 - b^2 >0
C. |b| > |c|
D. abc < 0
E. |a|/a = 1