In Terms of Advertising Execution, the Testimonial Execution

In terms of advertising execution, the testimonial execution

A) involves the presentation of an advertisement using drawn or personified characters or computer-enhanced or modified imagery
B) involves presenting a problem and a solution within the framework of an advertisement
C) portrays the product fitting into a person's current or desired lifestyle
D) uses an individual, such as a celebrity, an ordinary person, or a customer to endorse the product