Which sentence most accurate describes Writing Self-Efficacy?

a. If you have low self-efficacy, you will not be successful at writing.
b. Self-efficacy and self-confidence have nothing to do with the ability to write.
c. Knowing the mechanics of writing leads to success more than self-efficacy.
d. Your confidence in how well you write can determine success at writing.

d. Your confidence in how well you write can determine success at writing.