The difference between non-spontaneous and spontaneous reactions is that non-spontaneous reactions:

occur faster than spontaneous reactions

require outside interference to occur

release free energy

occur without an input of heat

The answer to your question is: second option

Explanation:

occur faster than spontaneous reactions The speed of a reaction does not depend if it s spontaneous or not. This option is incorrect.

require outside interference to occur This option is true, non spontaneous reactions requiere heat, a catalizer or any interference to occur.

release free energy This option is not true, they could or not release energy

occur without an input of heat This option is false, most of non-spontaneous reactions requiere heat to occur.