Peter has always been a social person and enjoys working with people. He recently got an Associate’s degree in computer programming and spends his work day alone in a small cubicle. Peter is regretting his decision to go into programming as a career because he has very little social contact.
A. person job fitB. person group fitC. person organization fitD. person vocation fit

Explanation: Person-vocation(PV) fit is used for defining the connection between the person and their occupation or job-field .The reports present the relationship's compatibility of both the factors with each other in terms of stability, personal achievement, job satisfaction etc.

Peter's situation is describing about the low connection between his occupation and him.He is not satisfied with social environment as he is not able to connect with much people because of his occupation field of programming.This signifies the person vocation fit is low .

Other options are incorrect because job and people or Peter himself is not an issue for the working rather the occupation in field of computer programming does not give him time to interact socially.

Thus, the correct option is option(D).