Assertion (A): Common difference of the AP −5,−1,3,7,… is 4.
Reason (R): Common difference of the AP a,a+d,a+2d,… is given by d=2nd term−1st term.
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 the correct explanation of A.
c) A is true but R is false.
d) A is false but R is true