B.) Reference Group
<em>A reference group is the group of people that a person looks to as a point of comparison</em>. This is in terms of attitude, looks, behavior, skill, etc.
In Marina's case, she looks up to the two singers and uses them as a reference point in terms of her singing skill and style, as well as her behavior. In doing this, they become her <em>reference group</em>.
Answer:
Graphs show a pattern in something that we are following. So by using those patterns on the graphs, we can see how the process that we are following is changing and we can conclude that without anything drastic happening the process will continue with the same pattern.
An example would be a pattern in weight loss. If a graph shows that a person is losing weight 1 pound per week we can conclude that the next week the person will have 1 pound less. This will only change if the person starts eating more which would be a drastic change to the pattern.
