The correct option is D 65.1801
Multiply the numbers without looking into decimal points
i.e.1301×501=651801
number of digits after decimal point in 13.01 is 2 and
number of digits after decimal point in 5.01 is 2.
So, Total number of digits after decimal point in required multiplication is (2+2)=4
∴13.01×5.01=65.1801