All effective administrators are concerned about the welfare of their employees, and all administrators who are concerned about the welfare of their employees are liberal in granting time off for personal needs; therefore, all administrators who are not liberal in granting time off for their employees’ personal needs are not effective administrators.

If the argument above is valid, then it must be true that

A. no ineffective administrators are liberal in granting time off for their employees’ personal needs

B. no ineffective administrators are concerned about the welfare of their employees

C. some effective administrators are not liberal in granting time off for their employees’ personal needs

D. all effective administrators are liberal in granting time off for their employees’ personal needs

E. all time off for personal needs is granted by effective administrators

The OA is D