Tim Howard, the goal keeper for the U.S. Men's soccer team, has just signed a major marketing deal with your company. You plan to utilize him in a variety of marketing campaigns leading up to the 2018 Men's Soccer World Cup in Russia. Which one of the following categories of nontraditional marketing will you emphasize in this situation?
1) Social media marketing
2) Influencer marketing
3) Experiential marketing
4) Guerrilla marketing