Which of the Following Statements About Propene $\mathrm { CH } _ { 3 } \mathrm { CH } = \mathrm { CH } _ { 2 }$

Which of the following statements about propene $\mathrm { CH } _ { 3 } \mathrm { CH } = \mathrm { CH } _ { 2 }$ , is correct?

A) All nine atoms lie in the same plane.
B) The compound has a cis and trans isomer.
C) It is a Lewis acid.
D) It has eight sigma bonds.
E) All the carbon atoms are $s p ^ { 2 }$ hybridized.