Why Did Slapstick Comedies Raise Concerns for Those Worried About

Why did slapstick comedies raise concerns for those worried about the moral fitness of the movies?

A) The focus on pratfalls and physical comedy might lead younger members of the audience to imitate this dangerous behavior.
B) Slapstick comedies only appealed to working-class and immigrant audiences.
C) Most nickelodeon programs only showed slapstick comedies.
D) Slapstick comedy challenged dominant ideas of moral and social propriety.