What aspect of sales does SPPD allow businesses to evaluate?

Sales Performance and Planning Data (SPPD) provides businesses with valuable insights specifically related to sales efficiency in retail distribution. By evaluating SPPD, companies can analyze factors such as the effectiveness of their sales strategies and how well their products are moving through various retail channels. This data helps identify areas where sales processes can be optimized, enabling retailers to enhance their distribution strategies and improve overall performance.

In contrast, the other options, while relevant to sales and marketing, do not reflect the primary focus of SPPD. For example, overall market share pertains to a broader measure of a company's performance in relation to the entire market, rather than efficiency within specific distribution channels. Seasonal sales trends examine fluctuations related to time but do not directly assess efficiency or effectiveness. Retailer advertising effectiveness looks at the impact of marketing efforts rather than the efficiency of sales in the distribution process. Thus, focusing on the efficiency within retail distribution is what makes option B the most accurate reflection of what SPPD evaluates.