There are four persons - Pharmacist, Architect, Engineer, and CA. The pharmacist is the son of CA and Engineer is the sister of the Pharmacist. If Architect is the mother of a Pharmacist then which of the following pairs of professions represents the professions of husband and wife?

• A. Pharmacist, Architect
• B. CA, Architect
• C. Engineer, Pharmacist
• D. CA, Engineer