For the reason that gasoline was relatively cheap and twenty-five cents per gallon in the 1960s, the average American came to view unfettered, inexpensive driving as a right rather than a lucky privilege.

(A) For the reason that gasoline was relatively cheap and
(B) Because gasoline was relatively cheap and
(C) Due to the fact that gasoline was a relatively inexpensive
(D) In that gasoline was a relatively inexpensive
(E) Because gasoline was a relatively cheap

Can some experts explain the best option?

OA E