Which monkey species has three distinct alarm vocalizations?

Adolescents and many young adults are confined to formal operations and do not possess post-formal operational thought because, according to Gisela Labouvie-Vief, they lack ____

the better coordination of sensory input with motor skills || the disappearance of egocentric thought and animism. || a greater recognition and incorporation of practical limitations to logical thinking || a greater use of hypothetical and inductive reasoning for concrete problems || || ||

In a naturalistic observation, the investigator

A) sets up a laboratory situation that evokes the behavior of interest. B) goes into the field and records the behavior of interest. C) uses a flexible, conversational style to probe for the participant's point of view. D) asks each participant the same set of questions in the same way.