Answer:
a. Deeply held convictions that influence your thinking when you are faced with choices
Explanation:
A conviction refers to a firmly held belief of an individual.
An individual forms his values from his family, friends and people around which gradually shape perspective.
Values determine how an individual behaves socially, what constitutes morally right and what is not. They govern the ethical behavior of an individual.
Values are personal in nature in the sense those ain't generally acceptable principles. Those differ from individual to individual. They determine the course of action of an individual when faced with challenges and alternatives.