The military have admitted that over 9,000 of those kidnapped are still unaccounted for, but the Mothers of the Plaza de Mayo
Explanation:
Because The numbers are hard to determine due to the secrecy surrounding the abductions.
The answer is B. because it shows how it looks. C. is confusing because you think of stormy as an adjective, but it's actually just a verb because it IS storming.
Hope I helped!