【单选题】The medical board, concerned by the drop in insurance payments and the failure of the accounting department to obtain the anticipated funds, resolved to pursue legal action against the insurance compa...
A.
concerned by the drop in insurance payments and the failure of the accounting department to obtain
B.
concerning the drop in payments by insurance and the failure of the accounting department to obtain
C.
because of its concern for the dropping insurance payments and the accounting department's failure at obtaining
D.
in its concern that the drop in insurance payments and the failure of the accounting department to obtain
E.
being concerned about the drop in insurance payments and the accounting department failing to obtain