Everyday fresh is a retail outlet that sells its products at a discounted rate. it expands its product base to a new division that primarily sells stationery. jason buys a set of pencils and erasers and assumes that these products must have a discount too this kind of reasoning is said to be

I believe the answer is: Deductive reasoning

In deductive reasoning, we would collect all the possible explanations of a certain occurrence and started to eliminate which one wouldn't fit to the fact at hand in order to form a certain conclusion. (just like what jason does in making his assumption)