Respuesta :
Knowing that each diploma has its highest level, the highest of all is the professional degree, that is, the phd.
What is a PhD?
This means that “Philosophy Doctor” can be understood as a Doctor in some area of knowledge. Therefore, the title in practice is awarded to people who reach the highest academic level in their field of study – and the meaning of a PhD is, strictly speaking, the same as that of a doctorate.
So we have that the answer that best matches is phd.
See more about degrees at brainly.com/question/364572