Answer the following question given this paragraph: 

Sunlight is turned into electricity at a solar power plant. A large group of mirrors focuses sunlight on one place. This place is called a receiver ( Figure below ). At the receiver, a liquid such as oil or water is heated to a high temperature. The liquid transfers its heat by conduction . In conduction, energy moves between two objects that are in contact. The warmer object transfers heat to the cooler object. At a solar power plant, the energy conducted by the heated liquid is used to make electricity.


Q: What does a solar power plant turn sunlight into?

 Choices:

- machinery

- batteries

- mechanical energy

- electricity

A:
electricity
