Assertion : An n-type semiconductor has a large number of electrons but still it is electrically neutral.
Reason : An n-type semiconductor is obtained by doping an intrinsic semiconductor with a pentavalent impurity.
(a) Both A and R are true and R is the correct explanation of A
(b) Both A and R are true but R is not correct explanation of A
(c) A is true but R is false
(d) A and R are false