Final answer:
The ideal candidate for dental implants must have good stable health and adequate alveolar bone, as well as be willing to commit to conscientious oral hygiene and regular dental visits.
Step-by-step explanation:
The ideal candidate for dental implants meets both criteria A and B. Criterion A states that the candidate should have good stable health and adequate alveolar bone. This means that the candidate should be in good overall health and have enough bone in their jaw to support the implant.
Criterion B states that the candidate should be willing to commit to conscientious oral hygiene and regular dental visits. This is important because proper oral hygiene and regular dental check-ups are necessary to maintain the health of the dental implant.
Therefore, the correct answer is option D: Both A and B.