Answer: brand extension
Step-by-step explanation:
Brand extension is when a company with an already established brand uses this brand to launch new products or go into other product categories. The logic here is that with people trusting the brand, they will be more likely to give the new product a try.
This is what Snickers relied on. They are an established brand in candy, when they introduced another product under the Snickers name, people bought it and gave it rave reviews because they trusted Snickers already.