The Doctoral degrees are typically awarded to astronomers, biochemists, biophysicists, and medical students.
A doctorate, or doctor's diploma, or doctoral diploma, is an educational diploma provided through universities and a few different academic institutions, derived from the historical formalism "license to educate".
In most countries, a studies diploma qualifies the holder to teach at college level within the diploma's subject or work in a selected profession.
So the reason is that it's miles clear that choice C, Doctoral diploma, is the suitable choice.
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