Depending on the reaction conditions, two different imines of formula C₈H₉ N might be formed by the reaction of benzaldehyde with methylamine. Explain, and give the structures of the imines."

A. Discuss the factors influencing imine formation.
B. Compare the stabilities of the potential imine products.
C. Propose reaction conditions favoring each imine.
D. Analyze the impact of substituents on imine formation.