Psychodynamic theory attempted to explain sexual orientation on the basis of

I believe the answer is: Identification

Psycho dynamic theory would consider both conscious factors (something that we can directly identify such as past experience and sexual arousal)  and unconscious factors (something that we cannot directly identify, such as hormones and underlying thought)   when evaluating a sexual orientation.

"budgeting is not just for the people who do have enough money. it is for everyone who wants to ensure that their money is enough."

Sector is best defined as (part).