Mary's a marketing manager for a nationwide restaurant chain. She's considering which channel she should use to advertise her restaurant's new menu upgrades. She decides to use traditional channels. Which traditional channel should May use to reach a broad audience?

Television

Explanation:

By doing the promotion in a television could be beneficial for the company as most of the audience are habitual to see the television and ofcourse many of them could aware of the company product by seeing the attractive schemes that ultimately benefit to the company and the customers

So in order to upgrade the menu, Mary used traditional channels and to reach to a broad audience, the television is one of the most traditional channel used

24 years, i believe is the correct answer.