A.I. Explanation:

Option 1: "Advanced tracking technology for professional athletes"

Explanation: This option is incorrect because the text does not mention advanced tracking technology specifically for professional athletes. Instead, it refers to a dedicated app for tracking progress, which is aimed at all participants, not just professionals.

Option 2: "Competitive sports leagues"

Explanation: This option is incorrect as the text emphasizes participation in activities like running, cycling, and yoga, focusing on community engagement rather than competitive sports leagues. The challenge is about wellness and support, not competition.

Option 3: "Community-wide health and fitness"

Explanation: This option is correct because the text highlights the 'Fit and Active' challenge as a city-wide event aimed at encouraging healthier lifestyles and building a supportive community focused on wellness. The main idea revolves around promoting health and fitness for all residents.

Option 4: "Dietary supplements and vitamins"

Explanation: This option is incorrect because the text does not mention dietary supplements or vitamins. Instead, it discusses incentives like gym memberships and fitness gear, which are related to physical activity rather than supplements.