Account for the following statement- Although the amino group is o– and p– directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.

Options

1. AAniline on nitration gives a substantial amount of m-nitroaniline because nitration is carried out in acidic m
2. BAniline's amino group undergoes a tautomeric shift to a meta-directing form during nitration.
3. CAniline has steric hindrance that favors substitution at the meta position.
4. DAniline forms a highly reactive complex with the nitrating agent, leading to meta substitution.