40 Butterflies at Swallowtail :D
Some parallelograms are also a rhombus.
So that's why the answer is choice B.
Note: Any rhombus is a parallelogram, but the other way around isn't true. For example, a rectangle that isn't a square is also not a rhombus. Any rectangle is a parallelogram. Not all parallelograms are rectangles.
Power of a quotient i think
Nitrogen does make the weight increase based on the given information
