(Power generation) One major source of electricity is hydroelectric generation, in which flowing water is redirected to turn a turbine generator. The distance the water falls on its way to the generator is referred to as the water's head. If the water's head is less than 10 meters, the site is called a low-head site, and a large volume of water is needed to generate enough electricity. At a high-head site, the water's head is more than 20 meters. A large volume of water isn't needed at these sites, as gravity provides the necessary energy boost. Using this information, write a C++ program that displays one of the following messages, based on the value entered for the water's head: This is a low-head site. This is a high-head side This site is between a low- and high-head site