An adverb is a word that describes a verb, or states how something is done. So, having this in mind, the adverb in this sentence is loudly.
How did she call them? Loudly.
I believe your answer would have to be A. " he"
A Long Walk to Water Summary Chapter 1
Southern Sudan, 2008
Nya is an 11-year-old girl. She goes to fetch water for her family. It will take her half the morning to get there, but this part—carrying an empty water jug—is the easy part of the journey. She will endure heat and thorns in her feet along the way.
