When providing patient education to a pregnant client recently diagnosed with Gestational Diabetes Mellitus (GDM), which key topics should the nurse prioritize to ensure the client's understanding and effective self-management of GDM during pregnancy?

Emphasize the need for rigorous daily exercise to control blood sugar levels.

Discuss the importance of strict carbohydrate restriction in the diet.

Explain the potential long-term consequences of GDM on future pregnancies.

Review blood glucose monitoring, meal planning, and the significance of follow-up appointments.