Pythagoras was a student of:
Correct option is A. Thales
Pythagoras (572 BC) was a student of Thales. Pythagoras and his group discovered many geometric properties and developed the theory of geometry to a great extent. This process continued till 300 BC. At that lime. Euclid. a teacher of mathematics at Alexandria in Egypt. collected all the known work and arranged it in his famous treatise.
Hence. (a) is the correct answer.