Which molecule is not polar (possesses no net dipole)?

Question

Option 1. acetone [Marvin structure]
Option 2. cis-dichloroethene [Marvin structure]
Option 3. methylbromide [Marvin structure]
Option 4. trans-dichloroethene [Marvin structure]
Option 5. dibromomethane [Marvin structure]

Answer 1

I am not familiar with the Marvin structures; however, I believe the only non-polar molecule listed is the trans-dichloroethene.

Answer 2

That was right! Thank you!