Can someone explain why A and D are sp2 and not sp3? since A has 3 bonds and 1 lone pair shouldnt it be sp3? and same for D

5. Determine the hybridization of each indicated atom in the oncology drug Gleevec. Hybridization options: s, p, sp, sp2, and s3. ( 1 pt. each) Hybridization of A: Hybridization of B:2 Hybridization of C:S3 Hybridization of D:2