The weights of certain machine components follow a normal distribution with a mean of 8.5 g and a standard deviation of 0.09 g. What are the two weights that separate the top 3% and the bottom 3% of these components' weights, serving as limits for rejection?
a) 8.36g and 8.64g
b) 8.28g and 8.72g
c) 8.45g and 8.55g
d) 8.20g and 8.80g
