He private benefit is​ ________, while the social benefit is​ ________.
a. the total benefit from consuming the good or​ service; the benefit received by the consumer of a good or service
b. the benefit received by the consumer of a good or​ service; the external benefit
c. the benefit received by the consumer of a good or​ service; the total benefits from consuming the good or service
d. none of the above.