Level degrees include master’s, specialist’s, and doctorate degrees.
a. undergraduate
b. graduate
c. secondary
d. primary

B. GRADUATE level degrees include master's, specialist's, and doctorate degrees.

Undergraduate level degrees include bachelor's degree. It is also called first degree since it is the degree attained after completing undergraduate courses.

Secondary level education refers to the last four years of statutory formal education from grade 9 through grade 12. It is taken at secondary schools, after taking primary level education and may be followed by higher education through undergraduate level education and graduate level education.

Primary level

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Digestion because it removes waste