Choose the One Alternative That Best Completes the Statement or Answers

Multiple Choice

Choose the one alternative that best completes the statement or answers thequestion.
- $\left(3 x^{2} y^{3}\right) ^{2}$

A) $3 x^{4} y^ 6$
B) $9 x^{4} y^{6}$
C) $9 x ^4 y^{5}$
D) $3 x^{4} y^{5}$