Answer:
B. the availability heuristic.
Explanation:
The availability heuristic: In psychology, the availability heuristic is defined as a mental shortcut that depends on the alternatives that comes to an individual's mind while evaluating particular method, decision, concept, or topic. A person often uses readily available facts to hold beliefs about several distant concepts.
In the question above, the lottery promoters are most clearly exploiting the influence of the availability heuristic.