Assertion `(A) :` Protons are better projectiles than neutrons.
Reason `(R) :` The neutrons being neutral do not experience repulsion from positively charged nucleus.
A. If both `(A)` and `(R)` are correct , and `(R)` is the correct explanation of `(A)`
B. If both `(A)` and `(R)` are correct, but (R) is not the correct explanation of `(A)`
C. If `(A)` is correct, but `(R)` is incorrect.
D. If both `(A)` and `(R)` are incorrect.