For Which One of the Following Molecules Do Geometric Isomers ${CH} \equiv {CCl}$

For which one of the following molecules do geometric isomers exist?

A) H₂ClC−CHCl₂
B) BrHC=CHBr
C) ${CH} \equiv {CCl}$
D) H₃C−CH₂Cl
E) H₂C=CCl₂