Answer: The correct answer is "(B) Amputation procedures for diabetes sufferers".
The price elasticity of demand measures the degree of response of the quantity demanded of a good, given the change in the price of that good.
The demand for a good or service is less elastic when, given a change in the price, the demand varies in a smaller amount and the demand for a good or service is more elastic when, before a change in the price, the demand varies by greater or equal. Quantity than the price.
Between a diamond necklace and amputation procedures for patients with diabetes it is clear that the demand for amputation procedures for patients with diabetes is less elastic than that of a diamond necklace, since being a consequence of a disease and being treated of the health of the people the demand varies little or very little before a change in the price. On the other hand, a diamond necklace is a luxurious asset, which is not of extreme necessity for people.