Question

while a product is typically tangible, the notion of service can be far more
(1 point)
inherent
conceptual
regrettable
concrete

Explanation:

The question contrasts tangible products with services. Tangible means physical, so the opposite/describing trait for services here is abstract/idea-based. "Conceptual" refers to being based on ideas rather than physical form, which fits the contrast with tangible products. The other options do not fit: "inherent" means built-in, "regrettable" means regrettable, "concrete" is synonymous with tangible.

Answer:

B. conceptual