Why rear tire is bigger than front tire for drag race ?

Muscle car that jumped in the international drag race event, such as Top Fuel, Usually applying rear-sized jumbo slick tires.

Why rear tire is bigger than front tire for drag race ??

The ultimate goal is to get maximum grip when accelerated.

But my friend MCR want to see how when the tire is getting the first beat of a large and accelerated engine?
See some photos below ...!