Wong (Hockenberry et al., 2007) describes learning right from wrong as being based on developmental stages. At what developmental stage is a human first able to integrate values of significant others into his or her behavioral system

This question is missing the options. I've found the complete question online. It is as follows:

Wong (Hockenberry et al, 2007) describes learning right from wrong as being based on developmental stages. At what developmental stage is a human first able to integrate values of significant others into his or her behavioral system?

A. Infant

B. Toddler

C. School-age child

D. Adolescent

The correct option is letter B. toddler.

Explanation:

We can reach the conclusion that letter B is the correct option through elimination. Letter A is incorrect because, even though moral development does start during infancy, infants still don't understand the concept of right or wrong. Letter C is wrong because school-age children have already integrated values. They are beginning to develop a conscience already. Letter D is incorrect because adolescents question the values they learned previously in life. The right answer is B, since toddlers begin to develop a sort of moral code by integrating values of significant others into their behavioral system.

it would be d). more resources must be obtained to attain that combination of goods and services