Correct option (c) Paramecium
Explanation:
Paramecium is a heterokaryotic organism, i.e. it has two nuclei near the cytostome (oral-shaped opening called mouth). The macronucleus, which is a conspicuous larger ellipsoidal vegetative nucleus, divides amitotically and controls the vegetative characters and micronucleus is a small compact reproductive nucleus which divides mitotically and controls the reproduction.
