Egyptian royalty prevented commoners from eating mushrooms by...

A. They were billionaires and thus owned all the mushroom and animal farms
B. They believed mushrooms had medicinal properties
C. Egyptian royalty thought eating mushrooms would make them immortal
D. Commoners couldn’t eat mushrooms since Egyptian royalty thought mushrooms were only meant for the pharaohs as they were immortal plants
E. None of the above
F. All of the above