Provide an Appropriate Response $\mathrm { D } ^ { 2 } \mathrm { D } _ { \mathrm { X } } , \mathrm { D } _ { \mathrm { y } }$

Multiple Choice

Provide an appropriate response.
-Suppose that you are solving a system of three linear equations and have evaluated $\mathrm { D } ^ { 2 } \mathrm { D } _ { \mathrm { X } } , \mathrm { D } _ { \mathrm { y } }$ , and $\mathrm { D } _ { \mathrm { Z } }$ . Under what condition does Cramer's rule not apply?

A) $\mathrm { D } _ { \mathrm { X } } = 0 , \mathrm { D } _ { \mathrm { y } } = 0$ , or $\mathrm { D } _ { \mathrm { Z } } = 0$
B) $\mathrm { D } = 0$
C) $D _ { X } = 0$
D) $\mathrm { D } = 0$ ; and either $\mathrm { D } _ { \mathrm { X } } = 0 , \mathrm { D } _ { \mathrm { y } } = 0$ , or $\mathrm { D } _ { \mathrm { z } } = 0$