Hey i don't quite know what the question is asking could anyone explain it to me ? what do we have to do to the conversion factor if we are dealing with units that measure area? a) nothing. b) cube it. c) halve it. d) square it.

A good example of such is say h you have a table top, and the table top  is a rectangle, the table is say 3 meters by 2 meters, now meters are just length unit, so the unit is just expressing one dimensional unit.

now, if we want to know the area of the table top, it will be using two dimensional units, namely width * length, so two units go into the result.

what is the area of the table top?  well, is a 3x2 meters, so is a 6 meters².

the meters got squared, indicating the resulting vaue is encapsulating two dimensional units, width and length in this case.

likewise, when doing volume, say a box of 3x2x5 meters, has height, width and length, so it's volume is 30 meters³, indicating is encapsulating three dimensional units.

The first answer is correct