Answer:
E) all of the above
- A. testimonial
- B. the product itself
- C. portfolio
- D. advertisements
Explanation:
Testimonials are statements that support your credibility, reputation or level of expertise.
If you are trying to sell something, it always helps to be able to show the physical product.
You should keep updated your sales portfolio specially with any new deal or promotion offered by the company or different discount prices.
Advertisements always help by making more people know about your product.
