A -  $2x\cdot 3x^2\cdot \left(-3\right)\cdot y\cdot \left(-2y^3\right)=$ $2\cdot 3\cdot \left(-3\right)\cdot \left(-2\right)\cdot x\cdot x^2\cdot y\cdot y^3=36\cdot x^3\cdot y^4$

A - IV

B -  $2x^2\cdot 3x^2\cdot \left(-3\right)\cdot y\cdot 2y^3=$ $2\cdot 3\cdot \left(-3\right)\cdot 2\cdot x^2\cdot x^2\cdot y\cdot y^3=-36\cdot x^4\cdot y^4$

B - II

C -  $2x^2\cdot 3x^2\cdot \left(-3\right)\cdot y\cdot \left(-2\right)y^3=$ $2\cdot 3\cdot \left(-3\right)\cdot \left(-2\right)\cdot x^2\cdot x^2\cdot y\cdot \left(y^3\right)=36\cdot x^4\cdot y^4$  

C - I

D - $2x\cdot 3x^2\cdot \left(-3\right)\cdot y\cdot 2y^3=2\cdot 3\cdot \left(-3\right)\cdot 2\cdot x\cdot x^2\cdot y\cdot y^3=$ $-36x^3\cdot y^4$

D - III