Recognized as one of history's most influential scientists,paul dirac helped to revolution ed the field of physics: his contribution to the theory of quantum electrodynamics were more valuable than were almost any other physicians of his time

A.than were almost any other
B.than were those of almost any other
C.than almost any
D.than almost any other
E.as were those of almost any

i am very confused with the options, plz help me to choose the correct answer