Which of the Statements About the Properties of the Carbon-Carbon

Which of the statements about the properties of the carbon-carbon double bond isnot true?

A) Trans alkenes are generally more stable than cis alkenes.
B) There is restricted rotation around the carbon-carbon double bond.
C) The stability of the carbon-carbon double bond increases as the number of substituent groups increases.
D) Whenever the two groups on each end of a carbon-carbon double bond are the same, two diastereomers are possible.