The real estate baron Donald Trump presented a comprehensive introduction to advanced negotiations designed for graduate students in a two-year course.

A) The real estate baron Donald Trump presented a comprehensive introduction to advanced negotiations designed for graduate students in a two-year course.
B) For graduate students, the real estate baron Donald Trump presented a two-year course, being a comprehensive introduction to advanced negotiations.
C) A comprehensive introduction was in a two-year course by the real estate baron Donald Trump presenting to graduate students an introduction to advanced negotiations
D) In a two year course designed for graduate students, the real estate baron Donald Trump presented a comprehensive introduction to advanced negotiations.
E) Presenting a comprehensive introduction, the real estate baron Donald Trump introduced advanced negotiations in a two-year course designed for graduate students

OA is D
If option A could be correct then what's WRONG WITH option C.