A marketing team is strategizing for an upcoming digital campaign. Based on your understanding of the marketing funnel, match the following campaign goals with the appropriate stage in the marketing funnel:
- Goal I: Introduce a new fitness app to health-conscious consumers.
- Goal II: Encourage users to sign up for a free trial of the fitness app.
- Goal III: Retain users who have completed the free trial and convert them into paying subscribers.
- Goal IV: Get satisfied subscribers to refer the app to their friends.
Identify the correct stage of the marketing funnel for each goal.