Answer:
D) sales promotions.
Step-by-step explanation:
Since Luke seeks options available to him to promote an energy drink, Turbozade, that has decreasing sales volumes after having peaked some time back. The marketing communications tool that Luke should focus marketing efforts on to keep the sales volume up is the use of sales promotions.
A sales promotion can be defined as a marketing strategy which is used by manufacturers to promote a product through the application of various short-term attractive incentives, in order to stimulate the demand and purchase of such products. Basically, it involves all short-term techniques and tactics developed by a manufacturer used to persuade customers into buying its products and consequently boosting the sales of such products.
Hence, Luke should initiate a sales promotions so as to keep the sales volume up.