Identify the correct sentence. A. When there’s a lifeguard on duty, it’s safe to swim. B. There’s a lifeguard on duty, it’s safe to swim. C. There’s a lifeguard on duty it’s safe to

Identify the correct sentence. A. When​ there’s a lifeguard on​ duty, it’s safe to swim. B. ​There’s a lifeguard on​ duty, it’s safe to swim. C. ​There’s a lifeguard on duty​ it’s safe to swim. D. There is a lifeguard on duty so​ it’s safe to swim