Answer:
Chicken egg
Step-by-step explanation:
A chicken egg is unicellular which can be scrambled or fried.
A chicken egg is not multicellular until it is fertilized or must mate first for fertilization of the egg.
A chicken egg is large enough which is rich in protein source and is cooked by humans in different ways such as scrambled or fried eggs.
Hence, the correct answer is "Chicken egg".