An onion farmer finds that, after long drought, some of his onion plants are still alive. Which best explains why these onion plants were able to survive?

Responses
A They have shorter roots that prevent the onions from drying out as fast.They have shorter roots that prevent the onions from drying out as fast.
B They are able to reproduce more quickly than other onion plants.They are able to reproduce more quickly than other onion plants.
C They have different variations that cause them to be more resistant to drought.They have different variations that cause them to be more resistant to drought.
D The color of the onions is lighter, and they absorb less sunlight than other onion plants.

C They have different variations that cause them to be more resistant to drought.