A pool is using Round Trip Time as its load balancing method (Alternate: Round Robin; Fallback: None). The last five resolutions have been C, D, C, D, C . Given the current conditions shown in the tab

Member A is not selected because its RTT value is not the lowest among available members under the current conditions shown.

The prior resolutions cycling between C and D indicate the preferred Round Trip Time method was falling back to the Round Robin alternate due to insufficient RTT probe data. With current conditions now providing valid RTT metrics, the preferred method resumes and selects member B because it has the lowest round trip time among all available members in the pool.

Member C was used during the Round Robin alternate phase but is not selected now because its RTT is not the lowest when the preferred method resumes.

Member D, like C, was part of the Round Robin alternate rotation but does not have the lowest RTT under current conditions.