A 45-year-old patient presented to aclinic for prosthetics. Objectively: Kennedy III type, I subtype dentition defect is present, the 46, 45, 44, 34, 35, teeth are missing. The bite is fixed. Che Crowns of the 47, 43, 33, 37 teeth are high, of a well-defined anatomical shape, intact. It is planned to fabricate a clasp denture. What system of the clasp denture fixation is the most appropriate in this case?