The list of the amount of calories one will burn while performing daily tasks is based on the person who is

A．Raking leaves in your yard.
B．Washing dishes.
C．Surfing the Internet.
D．Fixing dinner.

A．hints about how to improve one's communication skills in English.
B．the combined studies of both spoken and written language.
C．gaining all the necessary skills at reading.
D．syntax and grammar necessary for good writing.