When can a coast selection be "banked" upon transfer from Japan, Guam, or Korea?

The correct answer is that a coast selection can never be "banked" upon transfer from Japan, Guam, or Korea. In this context, "banking" a coast selection refers to deferring or setting aside the selection of a particular duty station or assignment for future use. Due to operational considerations and the nature of assignments in these specific regions, the policy dictates that once a member is transferred from these areas, they are not allowed to bank their coast selection. This regulation is in place to ensure that personnel assignments are effectively managed and to maintain the readiness of the service. Each of the other options suggests a possibility of banking a coast selection, either conditionally or unconditionally, which does not align with the established guidelines for service members transitioning from Japan, Guam, or Korea.