Sentence Correction

A bite from the tsetse fly invariably paralyzes its victims unless an antidote is administered
within two hours.
(A) its victims unless an antidote is administered
(B) its victims unless an antidote can be administered
(C) its victims unless an antidote was administered
(D) its victims unless an antidote is administered to the victims
(E) its victims unless they receive an antidote

OA E

bpgen wrote:A bite from the tsetse fly invariably paralyzes its victims unless an antidote is administered
within two hours.
(A) its victims unless an antidote is administered
(B) its victims unless an antidote can be administered
(C) its victims unless an antidote was administered
(D) its victims unless an antidote is administered to the victims
(E) its victims unless they receive an antidote

OA E

Example of Dangling modifier.
E rectifies this. D can also be opted out (but is repetitive) but E is the fix.