The correct option is A Cow, Rabbit and Deer
Primary consumers are organisms which feed on producers. They are also known as herbivores. Animals such as cows, horses, elephants, deer, and rabbits are some of the primary consumers.
Ulothrix, Pistia and Azolla - Producers
Frog, Large fishes and Snakes - Secondary consumers
Aspergillus, Polycarpus and Fusarium - Decomposers