Consider the following alkenes:

Arrange them in order of increasing stability. Justify your order.

iv < iii < v < i < iii

The ranking is based on the number and positions of hydrogens around the double bond.

ii < iii < v < i < iv

The ranking is based on the number and positions of the substituents around the double bond.

ii < i < v < iii < iv

The ranking is based on the number and positions of hydrogens around the double bond.

iv < i < v < iii < ii

The ranking is based on the number and positions of the substituents around the double bond.