The correct answer is C because Workday allows benefit plans to be introduced mid-year by using effective dating on the plan and associating that plan with the existing benefit plan year definition. Since the plan must become available on July 1 within the current plan year, the correct approach is to configure the plan with a future effective date of July 1 and ensure it is included in the current plan year so eligible workers can enroll when the plan becomes active.

Option A is incorrect because delaying the plan until the next plan year does not meet the stated requirement for a mid-year rollout. Option B is also incorrect because creating a separate plan year beginning July 1 is not the standard solution when the organization is already operating within an existing plan year. Option D is incorrect because eligibility is not automatically controlled simply by adding the plan to a plan year; eligibility must still be governed through the appropriate benefit group and plan eligibility configuration. Effective dating plus inclusion in the current plan year provides the correct structure for controlled mid-year implementation.