Correct option is D
Given
Milk from first buffalo = 9.488 L Milk from second buffalo = 11.375 L Milk from third buffalo = 12.643 L
Milk sold = 29.250 L
Formula / Concept used
Milk left = Total milk obtained − Milk sold
Solution
Total milk obtained = 9.488 + 11.375 + 12.643 = 33.506 L
Milk left = 33.506 − 29.250 = 4.256 L
The correct option is (d)