Step-by-step explanation
The question states that Marai performs once a week then switches to performing nine times a week due to the lead performer's accident.
Looking at the graphs, we can see that graph "a" properly shows the quick increase between the first week and the second week.
Week 1 can be traced to show one performance, while week two can also be traced to show nine performances. This is evidently not the same look of graph "b."
Answer: Option A