Tristan has invented a new treat dispensing device for dogs, and he plans to sell it through an online ecommerce store. He is considering a variety of Digital marketing strategies to start selling his new devices; however, he does not have too much budget available for marketing. He believes he first needs to educate the market about his new device. Identify at least 3 digital marketing strategies that Tristan should use, given his goals and the budget allocated. Also identify 1 important metric that he should track, associated with each of the strategies identified.