Developmental scientists are:
a. primarily researchers.
b. primarily practitioners.
c. primarily psychologists.
d. researchers and practitioners from a variety of disciplines.

d. researchers and practitioners from a variety od disciplines.

Explanation:

They are synthesising perspectives from biology, psychology, and sociology to understand behavioral and psychological aspects of human development.

answer is no d as developmental scientists are related to the development of children psychology and also they research about their adultsaction on making the psychology better. they study the psychological aspect of human development. and it is an interdisciplinary subject too .

hope it helps.

are there actual statements because if not my answer would be: that using the five senses the author can create a sense of worth in an object to appeal to the reader and create meaning.

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.