In an Asian Rice Paddy,carp Eat Decaying Material from Around

In an Asian rice paddy,carp eat decaying material from around the base of rice plants while a snail scrapes algae from the leaves,stems,and roots of the same plant.They can survive at the same time in the same rice paddy because they occupy

A) the same habitat but different niches.
B) the same habitat and the same niche.
C) the same niche but different habitats.
D) different habitats and different niches.