Mark is facing a challenging project deadline at work. Mark believes that external factors, such as luck and fate, play a significant role in the project's success or failure. How does Mark's external locus of control likely affect his behavior in response to the project's challenges?

a$.$ Mark takes initiative, sets clear goals, and diligently works toward the project deadline.

b$.$ Mark actively seeks feedback from colleagues to enhance his own skills and performance.

c$.$ Mark attributes any success or failure in the project to his own skills and efforts.

d$.$ Mark is likely to feel less motivated, believing that luck will determine the project's outcome.