Income from salary

Mr. P retires from private service on 30th April, 2018 & his pension has been fixed at Rs. 1,500 p.m. He gets a of his pension commuted during January, 2019 & receives Rs. 75,000. He also gets Rs. 60,000 as gratuity. The total pension taxable including commuted value will be. (a) Rs. 16,500 (b) Rs. 21,500 (c) Rs. 39,250 (d) Rs. 14,250


Please explain