Answer:
Viral H-ook.
Step-by-step explanation:
H-ook is referred to as something that enables to attract a person's attention and reels them in. Vir-al H-ook is a part of v-ir-al marketing. Just like its name it helps to catch the attention of people and reel them in.
It is a strategy through which v-ir-al marketing works by passing a message from one person to the other. This can be done by creating ads on social media platforms. These ads grab the attention of the viewer and compel him/her to view the product.
The strategy that the radio station has used to attract more users is called Vi-r-al h-ook. They have created a li-nk and asked the viewers or the users to share the li-nk and as users share this li-nk they obtain more users.
So, the correct answer is Vi-r-al H-ook.