AFCAT Model Paper 2

The logic followed is:
Orange, Watermelon, and Pomegranate fruits have mature seeds to develop into plants when seeds are put in the ground. But Banana fruits do not contain mature seeds. Bananas are reproduced by pups coming out of adults' Banana tree roots.
So the conclusion is that the Banana does not have a seed and the other three fruits have seeds.
Hence the correct answer is "Banana".