What class design option involves alternating exercises to target different muscle groups?

The choice involving alternating exercises to target different muscle groups is correctly identified as the rotating circuit. This type of class design is structured in a way that participants move through different stations or areas where they perform specific exercises focused on various muscle groups. The rotation allows individuals to work one muscle group while other groups are given rest, promoting both strength and endurance in a balanced manner. This approach is effective in preventing fatigue, maintaining engagement, and enhancing overall fitness.

In contrast, unison circuits typically involve performing the same exercise at the same time, which may not target multiple muscle groups effectively. Partner training focuses on exercises done in pairs, often involving mutual assistance or competitive elements rather than a structured approach to alternating muscle groups. Freestyle cardio emphasizes continuous rhythmic movement and cardiovascular conditioning but does not specifically entail alternating strength exercises between different muscle groups in a systematic circuit format.