What is the primary difference between the nucleophilic substitution reactions of haloalkanes and haloarenes, and why does the product formed during an SN1 reaction with haloalkanes result in a racemic mixture?

A) Haloalkanes undergo nucleophilic substitution, while haloarenes do not easily.
B) Haloarenes undergo nucleophilic substitution, while haloalkanes do not easily.
C) Both haloalkanes and haloarenes undergo nucleophilic substitution with similar reaction mechanisms.
D) Haloalkanes and haloarenes do not undergo nucleophilic substitution reactions.