To really beautifully portray the emotion of the story/meaning that he is telling.
Answer:
B) GAINS, will enhance international efforts to collect and analyze laboratory samples from wild birds and identify genetic changes in the virus.
Here is the sentence using the words capacity and regulation:
The capacity of the hall can only accommodate at most 500 people; therefore, strict regulation of the flow of the people going in and out must be observed all the time. Regulation means control or management. Capacity means the amount or size that something can contain. Hope this answer helps.
We cant answer that because you never gave us the sentence (there is no sentence so i cant find the <span>pronoun used within the object of preposition) ?</span>