Question

controlled substances or scheduled medications are rated on a scale of __________ using roman numerals.
a. 10 to 20
b. 0 to 3
c. 1 to 5
d. 1 to 50

Explanation:

Controlled substances in the US are classified into five schedules (I - V) using Roman numerals, indicating their potential for abuse and medical use.

Answer:

C. 1 to 5