You have a bottle of cyclohexane and a bottle of cyclohexene, but they are unlabelled. Which of the following reagents would be the best choice to use to distinguish which was which?

a. KOH/H2O
b. KOH/CH3OH
c. CH3ONa/CH3OH
d. CH3CH2ONa/CH3CH2OH
e. (CH3)3COK/(CH3)3COH

My textbook isn't helping. Thank you.