Step-by-step explanation:
Bachelor's degree: four-year college-level degree.
Associate degree: general two-year college-level degree.
Doctorate degree: advanced, specialized degree earned after a master's or bachelor's degree.
Master's degree: two-year advanced, specialized degree earned after a bachelor's degree.
NOTE
In the question, doctoral degree was written, I suppose it was Doctorate degree that was meant to be written in place of that.