Answer:
C) Conjunctive heuristic
Explanation:
When a consumer (Mr. Jones) uses a conjunctive heuristic approach, he will set a minimum cutoff level for the attributes that he considers important, and will decide to purchase the good that meets that minimum threshold or cutoff level for every desirable attribute.
In this case, Mr. Jones has three desirable attributes and designed a scale with a minimum cutoff level of 7.