Assertion: A few positively charged a -particles are deflected in Rutherford's experiment.
Reason: Most of the space in the atom is empty.
a) Both assertion (A) and reason (R) are true and reason \( (R) \) is the correct explanation of assertion (A).
b) Both assertion (A) and reason ( \( R \) ) are true but reason \( (R) \) is not the correct explanation of assertion (A).
c) Assertion (A) is true but reason (R) is false.
d) Assertion (A) is false but reason (R) is true.