Is the equation below written in standard form? If not, select which explanation best applies to why the equation is not written in standard form.
12=2x+4y
A.
the requirement that A > or equal to is not satisfied
B.
the requirement that A and B are not both zero is not satisfied
C.
A, B, and C do not have a greatest common factor of 1
D.
the equation is written in standard form