The correct options are
A Petrol
B Coal
C Diesel
The energy resources which man has been using for centuries are called conventional energy sources. These type of resources are also called non-renewable source of energy.
Petrol, coal and diesel are used by humans for centuries. They are exhausable too.
Hence they fall under conventional sources of energy.
Wind on the other hand is a renewable source of energy. Hence it is a non-conventional form of energy