Read the following Assertion (A) and Reason (R) and choose the correct answer from the given options:
Assertion (A): Pravasi Bharatiya Divas is celebrated on 9th January every year to mark the contribution of the overseas Indian community to the development of India.
Reason (R): 9th January was chosen as the day to celebrate the occasion because on this day in 1915, Mahatma Gandhi returned to India from South Africa.