how would you solve this?

M&M plain candies have a mean weight of 0.8565 g and a standard deviation of 0.0518 g. the M&M candies come from a package containing 465 candies and the package label stated the net weight is 396.9g. ( If every package has 465 candies, the mean weight of the candies must exceed 396.9/465 - 0.8535 gor the net contents to weight at least 396.9g.) If 200 M&Ms are selected what is the probability that their mean weight is at least 0.8535g? 0 79.3% 47.7% O 52.3% O 20.6%