In monopolistic competition, the aspect that gives consumers more choice is c) few barriers to market entry exist. When there are few barriers to entry, it enables a greater number of firms to enter the market and offer their products. This influx of firms leads to a wider variety of products and services available to consumers, allowing them to choose from different brands, styles, and features.
For example, in a market where barriers to entry are low, numerous restaurants may open up, each offering distinct menus and atmospheres. This diversity enhances consumer choice, as individuals can opt for options that best suit their preferences and needs. Conversely, if barriers to entry were high, fewer firms would enter the market, resulting in limited choices for consumers.