Which of the Following Compounds Does Not Have a Dipole $\left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { C } = \mathrm { C } \left( \mathrm { CH } _ { 3 } \right) _ { 2 }$

Which of the following compounds does not have a dipole moment of zero?

A) CH₃NH₂
B) CO₂
C) CH₃OCH₃
D) $\left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { C } = \mathrm { C } \left( \mathrm { CH } _ { 3 } \right) _ { 2 }$
E) CHCl₃