Q)Some of the wild dogs that were distributed to local pet sanctuaries by city health officials and exterminated last year were collected as part of the city's initiative to protect local residents from dog attacks.

(A) Some of the wild dogs that were distributed to local pet sanctuaries by city health officials and exterminated last year were
(B) Some of the wild dogs that the local pet sanctuaries received and city health officials exterminated have been
(C) Some of the wild dogs that were distributed to local pet sanctuaries or exterminated by city health officials last year had been
(D) Last year some of the wild dogs that were distributed to local pet sanctuaries or exterminated by city health officials made
(E) Last year city health officials distributed to local pet sanctuaries as well as exterminated some of the wild dogs that had been

Can somebody explain this questions ?? I seem to have conflict with OA !!