Critical Reasoning

The Delta store started canvassing on the local news channel 2 weeks ago, its weekly sales has increased by 5%. To increase its sales, Delta's opponent, Sigma should persue the same strategy.

Which of the following most strengthens the argument above?

A. Sigma's customer base went down 65% last year.

B. The local tv station dedicates 85% of its air time to commercials.

C. Of the 20 stores that canvassed on the local channel, only Delta's business thrived.

D. 5% of the businesses that canvass on the local channel report an increase in business volume.

E. The local tv station has over 200 listeners.