Final answer:
The product less likely to evoke an allergic response is designated as hypoallergenic, as it's formulated to minimize potential allergic reactions.
Step-by-step explanation:
The term that means the product is less likely to provoke an allergic reaction is d. hypoallergenic. During an allergy, an individual's immune system reacts to normally harmless proteins from the environment, leading to unpleasant symptoms. This is because the body incorrectly identifies these proteins as threats, leading to an unnecessary and exaggerated immune response, commonly referred to as hypersensitivity. Products that are hypoallergenic are formulated to minimize the risk of causing an allergic response.