I narrowed this down to B and E and eventually chose E.
The relevant text in the passage states "the critical legal scholars contend that law is an expression of power, but not, as held by the positivists, the power of the legitimate sovereign government. Rather, it is an expression of the power of elites who may have no legitimate authority, but who are intent on preserving the privileges of their race, class, or gender."
I chose E because it states the laws were "devised by lawmakers to ensure the continuation of that governmental system" which to me seemed congruous with "preserving the privileges." B is about income tax deductions for charitable contributions, and I am not sure how that suggests directly preserving privileges for the rich without us having to assume too much (even if they're getting tax breaks, they're still donating money?)
Thanks for the help!