Answer:
1. B). Unusable.
2. A). Possibly usable.
Step-by-step explanation:
1. The first source is unusable as it only intends to display the economic benefits of legalizing marijuana which is not sufficient. Before legalizing a drug, its impact on public health is checked at first and later the other ones. Thus, this source is completely unusable.
2. The second source could possibly be used as the information and experience shared by the exotic shop owner would provide authentic details and assist in carrying forward the research. Thus, this source seems usable.