The correct option is A 0.75 kg
Amount of rice bought from Shop A = 250 g
Amount of rice bought from Shop B = 500 g
Total amount of rice bought from both the shops = 250 g + 500 g
= 750 g
Now, convert g to kg.
1 g = 11000 kg
750 g = 7501000 = 0.75 kg
Hence, Harry bought 0.75 kg of rice.