Final answer:
The correct comedy film subgenres according to the textbook are Slapstick, Screwball, and Romantic. These subgenres are characterized by physical humor, quirky situations, and romantic plots respectively.
Step-by-step explanation:
Comedy Film Subgenres
Comedy as a genre in both theater and film tends to focus on the humorous aspects of everyday life and human interactions. Key features of a comedy include situations where characters face practical dilemmas, commonly generate laughter, often depict 'common' people without deep psychological insights, and traditionally end on a positive note.
Identified Subgenres
Based on the provided descriptions, the correct answer to the textbook question on comedy film subgenres would be b) Slapstick, screwball, romantic.