Fill the blank with the answer:
But the epidemic is "moderate" in severity, according to Margaret Chan, the organization's director general, ____ the overwhelming majority of patients experiencing only mild symptoms and a full recovery, often in the absence of any medical treatment.
Hello guys, the right answer is A, but I wonder why it can be?
According to this link(preposisions), there introduces the situation where the with can be used, that is, with is used to indicate together, using, having, feeling, and agreement.
In above blank, Does it belongs to the having case? If not, I would like to consult you which and why? Thank you very much.