Which among the following is correct?

The term role-set has been coined to refer-

(a) to the total complex of other social positions with which any particular social position is characteristically connected

(b) to the total number of occupants of the correlative social positions when a particular occupant of a particular position is taken as a point of reference,

(c) Both (a) and (b) are true

(d) Both (a) and (b) are false