Which graph shows data that would allow the most accurate prediction for the number of water bottles a vendor sells based on the daily high temperature?

Graph A
Daily High Temperatures and Bottled Water Sales

On a graph, points are scattered all over the graph.

Graph B
Daily High Temperatures and Bottled Water Sales

On a graph, points are scattered all over the graph.
Graph C
Daily High Temperatures and Bottled Water Sales

On a graph, points are grouped together and form a line with positive slope.
Graph D
Daily High Temperatures and Bottled Water Sales

On a graph, points are grouped together and increase.
graph A
graph B
graph C
graph D