Which process converts olefins into paraffins?

Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A)$: Cis form of alkene is found to be more polar than the trans form.
Reason $(R)$: Dipole moment of trans isomer of $2$-butene is zero.
In the light of the above statements,choose the correct answer from the options given below:

Which alkene undergoes ozonolysis to produce $2,6-$heptanedione?

Which among the following alkenes is most stable?

What will be the product in the following reaction?
(Image of methylenecyclohexane reacting with $NBS$)

Dilute aqueous $KMnO_4$ at room temperature reacts with $R-CH=CH-R$ to give: