I’ll give the Brainliest to who answers this question with a reasonable explanation. Rebecca’s family uses their house’s heating system to stay warm in the winter. How do they know when their system is at equilibrium?

A. The house temperature balances the set temperature and the system shuts off.

B. The house temperature is changing and the system is rapidly changing from on to off then back again.

C. The house temperature is lower than the set temperature and heat is on.

D. The house temperature is higher than the set temperature and the cooling is on.

Thank you.