Please answer the followingquestion based on the following scenario.

A local Columbia-area company is interested in how its newly designed ad will be received by the consumers. The company designed a lab experiment and asked 200 undergraduate students (randomly assigned to two adgroups)to review either the new ad the company is planning on using or the old ad that the company is currently running. The results showed that the research participants showed more favorable evaluations of the new ad. The company decided to run the newly designed ad based on the research findings.

Assuming evaluations are measuredbased on a continuous rating scale from 1 to 100, which statisticaltest should a researcher use to compare the evaluations of the old ad and the new ad?

A: one-sample t-test

B: paired sample t-test.

C: independent sample t-test

D: chi-square test