Final answer:
Peter Jusczyk assessed infants' ability to recognize their own names by auditory cues. The correct answer is options B.
Step-by-step explanation:
Peter Jusczyk tested infants' abilities to recognize their own names by using auditory cues to measure infants' responses to their names. This approach is founded on the evidence that infants develop language and communication skills starting before birth and can recognize their mother's voice at birth, indicating early auditory discrimination skills.
By examining how infants responded aurally, without relying on visual cues or physical responses, Jusczyk could assess the cognitive development related to self-awareness and the recognition of personal identification.