Answer:
B) An internal locus of control
Explanation:
People with a high internal locus of control believe that their successes or failures can be primarily explained by things they can control (internal factors), such as effort or discipline.
On the contrary, people with a high external locus of control believe that things they can't control (external factors) are more important in determining success or failure than internal factors.
In this question, Jessica believes that her good grades are the result of personal effort, same for her basketball and cooking abilities, thus, Jessica is a person with a high internal locus of control.