Photovoltaic (pv) technology is best described as passive solar technology using sun's energy to warm a room without mechanical devices using sunlight to generate electricity trapping sun's heat and storing it for many varied uses using mirrors to concentrate sunlight, in order to heat water and produce steam for electricity generation\

Photovoltaic technology is best described as 'using sunlight to generate electricity. The technology involves using cells that produce direct current (dc) voltage when light shines unto its surface. These cells are called photovoltaic cells. They convert light energy directly into electrical energy. No outside source of electricity is needed to produce current.  

Is it b the answer and yes