Choose the Answer Which Best Rewords the Italicized Portion

Multiple Choice

Choose the answer which best rewords the italicized portion. If you think the original wording is best, choose option A.
The economy in Egypt has suffered due to the fact that there was a political upheaval caused by the revolution and the removal of President Mubarak.

A) due to the fact that
B) due to
C) because
D) through