# Problem: Which of the following, all of which have the formula C5H10, has cis and trans isomers?a. 2-methyl-1-buteneb. 2-methyl-2-butenec. 2-pentened. none of them

###### Problem Details

Which of the following, all of which have the formula C5H10, has cis and trans isomers?

a. 2-methyl-1-butene

b. 2-methyl-2-butene

c. 2-pentene

d. none of them