I believe “satisfyingly” would work, the definition of satisfyingly is: “in a way that gives fulfillment or the pleasure associated with this.” The definition of “proudly” is: “with a feeling of deep pleasure or satisfaction in one's own achievements, qualities, or possessions or those of someone with whom one is closely associated.” The word satisfy is used in the definition so I believe they are similar!
The answer would be C I believe.
Answer:
The deaths occur at a rate that makes opioid abuse a public health issue.
Explanation:
Capitals are used for proper nouns.