Which of the following must be true about a signal that is used to reveal private information in order for the signal to be effective ?

A. It must be as seen on TV

B. It must be free to the signaling party

C. It must be costly to the signaling party but less costly to the party with higher-quality product

D. It must be applied to an inexpensive product

Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.

Discuss the answer or suggest a sourced correction
Thank you for contributing.
Your comment was submitted and will appear after editorial review.

Your email is used only for moderation and is never displayed. Spam, copied material and fabricated endorsements are rejected.