Final answer:
Advertising does not necessarily reduce consumer choices; instead, it can increase them by enabling competitors to promote new products and compete in the market.
Step-by-step explanation:
To refute the argument that advertising reduces the number of choices available to consumers, one could point out that when a successful new product is introduced, competitors quickly follow and use advertising to tell consumers about their new brands. This indicates that advertising can actually increase competition and consumer choice by allowing new entrants to promote their products and differentiate themselves in the market. While dominant brands with large advertising budgets may initially have an edge, the ability for new brands to emerge and compete through advertising demonstrates the potential for increased consumer choice, countering the claim that advertising diminishes it.