Sentence Correction

In an attempt to guarantee the security of its innovative water purification method, the company required each employee to sign a confidentiality agreement prohibiting that its water purification methods be disclosed to companies using an analogous purification process.

A. prohibiting that its water purification methods be disclosed to companies
B. prohibiting them from the disclosing of its water purification methods to any company
C. prohibiting disclosure of its water purification methods to any company
D. that would prohibit them from disclosure of its water purification methods to companies
E. that would prohibit its water purification methods to be disclosed to a company


OA is E

The OA looks incorrect, it should be (d), you prohibit someone from doing something

actually B and D are out because both of them use "THEM" to refer back to employee

In A "prohibiting that" is not right, "that" should modify agreement.

E is better than C, because the action happened in the past and "that would" should correctly refers to the future action.

I would go with E, them is totally incorrect