Anyone mind helping?

Me what is the value of x? showing work would be appreciated - ! : )

How do you answer this question? (step by step)

Which expression is equivalent to (4x^3*y^5)(3x^5*y)^2 \a) 24x^13*y^7b) 36x^13*y^7c) 36x^28*y^7d) 144x^16*y^12