Final answer:
According to Freud, a part of the body with pleasure-giving capability is known as b)an 'erogenous zone'. This concept is integral to his psychosexual stages of development theory, as these zones are the focus of pleasure-seeking urges at different points in childhood.
Step-by-step explanation:
Sigmund Freud, a pioneer in the field of psychology, believed that personality development occurs through various psychosexual stages. Each of these stages corresponds to certain erogenous zones in the body, which are areas that can provide pleasure. When discussing parts of the body that have pleasure-giving capability, according to Freud, these would be identified as erogenous zones.
The phallic stage, one of Freud's psychosexual stages of development, focuses on the genitals as the primary erogenous zone. It is during this stage that Freud posited children develop a deeper awareness of their bodies, and dynamics such as the Oedipus complex may emerge. In general, Freud's theory delineates the transformation of the pleasure-seeking urges of the id as they shift across the different erogenous zones throughout the stages. Thus, the correct answer to the question of what Freud called any part of the body that has a pleasure-giving capability is b. an erogenous zone.