Question

please help check my homework. I think that answer is C. am I right nor wrong?
Can the values be added or subtracted? If one value needs to be converted to another, describe the conversion.

19.75 in² + 26.2 in³
A.
The values cannot be added because one is measuring area and the other is measuring volume.
B.
The values can be added without making a conversion of units because they both measure area.
C.
The values can be added after making a conversion of units because they both measure area.
D.
The values cannot be added because one is measuring area and the other is measuring mass.