Which of the following describes the birthday rule? The guardian whose day of birth occurs earlier in the calendar year holds the primary policy for dependent children. The guardian whose birth month and year occur earlier holds the primary policy for dependent children. The guardian whose day of birth occurs later in the calendar year holds the primary policy for dependent children. The guardian whose birth month and year occur later holds the primary policy for dependent children.

The correct answer is: The guardian whose birth month and year occur earlier holds the primary policy for dependent children.<br /><br />The birthday rule is a guideline used to determine which parent's health insurance plan is the primary policy for dependent children when both parents have coverage. According to this rule, the parent whose birthday (month and year) occurs earlier in the calendar year holds the primary policy. For example, if one parent's birthday is January 15 and the other's is March 12, the parent with the January birthday would have the primary policy.