Pearl Sands Resort and Spa is a popular summer attraction located in hilly town of Rockten. They usually attract customers in the summer. During the pre-summer period, Pearl Sands Resort began sponsoring shows on TV, and putting up billboards around Rockten and the surrounding towns advertising the resort. The ads hinted at the coming summer, and how the resort has always been the place to go for a welcome break from everyday life. Which of the following approaches has Pearl Sands Resort used? a)pull strategy
b)publish-subscribe method
c)direct marketing
d)push strategy
e)vertical integration