Are George and Marcy Correct in That Limited Partners Have

Are George and Marcy correct in that limited partners have no say regarding the admission of new partners?

A) No, because in order to add a new partner, all partners, including limited partners, must agree.
B) No, because in order to add a new partner, all general partners must agree and at least one half of limited partners must agree.
C) No, because in order to add a new partner, at least one half of general partners and one half of limited partners must agree.
D) They are correct only if all general partners agree that limited partners cannot vote on the matter.
E) They are correct.