A house has solar panels on the roof. The solar panels created electricity, which is then used to power the home's heating system.

Solar panels on roof

The use of solar panels in this way contributes to what kind of heating?
Select one:
a. passive solar heating
b. conduction solar heating
c. active solar heating*
d. fusion solar heating

2 answers

Google each alternative.
I've already Googled each. No help, but I got the right answer anyway: C