Who can do intra-oral fabrication of single-unit extra-coronal provisional restorations, including try-in, adjusting occlusion extra-orally, temporary cementation, removing provisional cement, and removing provisional restorations, provided that provisional restorations are assessed by a dentist before cementation and again after the removal of provisional cement and gross removal of supragingival permanent cement using an appropriate hand instrument excluding the use of dental handpieces?
a) Dental Hygienist
b) Dental Assistant
c) Prosthodontist
d) Periodontist