When Watson claimed "Give me a dozen healthy infants..." he was arguing that behaviour is strongly influenced by

A) heredity factors.
B) environmental factors.
C) cultural factors.
D) subjective factors.

Watson's claim suggests that behaviour is strongly influenced by environmental factors, specifically the environmental conditions and experiences that healthy infants are exposed to. This is in contrast to the view that behaviour is primarily determined by heredity factors, cultural factors, or subjective factors.