Which of the following will exhibit geometrical isomerism?

Which of the following would exhibit geometrical isomerism ? Hex-2-ene, 2-methylpent-1-ene, 2-methylpropene and 4-methylpent-2-ene

Which of the following can exhibit geometrical isomerism?

Which of the following can exhibit geometrical isomerism?

Which of the following can exhibit geometrical isomerism

Which of the following can exhibit geometrical isomerism?

Which of following will exhibit geometrical isomerism?

Which of the following exhibits geometrical isomerism?