The weight $$W$$ of a certain stock of fish is given by $$W = nw$$, where $$n$$ is the size of stock and $$w$$ is the average weight of a fish. If $$n$$ and $$w$$ change with time $$t$$ as $$n = 2t^2 + 3$$ and $$w = t^2 - t + 2$$, then the rate of change of $$W$$ with respect to $$t$$ at $$t = 1$$ is

A

$$1$$

B

$$8$$

C

$$13$$

D

$$5$$