Final answer:
The medical assistant should ask the pharmacist to provide more information about the e-prescription request.
Step-by-step explanation:
The medical assistant should take option 3 and ask the pharmacist to provide more information about the e-prescription request. This is important because the pharmacist may have questions or need clarification about the medication order before it can be filled. By gathering more information, the medical assistant can ensure that the medication order is accurate and appropriate for the patient's needs.