Which of the following would adequately describe the role(s) a CFP professional would have with clients when providing an estate plan?

Maintain a fiduciary relationship with clients.

Fully inform clients as to material facts which may affect their estate plan.

Keep a large and current overview of economic, tax, and other factors to recognize deficiencies in a plan.

Know when to consult with, or bring into the engagement, experts in an area where the practitioner may need assistance.