The BEST way for Rahim to handle the situation is Option 3: Call the supervisor, explain the situation, and ask for enough sick leave to complete the medication.
This option prioritizes transparency and communication, ensuring that Rahim's supervisor is aware of the situation and can make arrangements accordingly.
The WORST way to handle the situation is Option 1: Drive to work as usual, operate the forklift, and don't mention any prescription drug use. This option is unsafe and violates the warning on Rahim's medication label. It puts both Rahim and his coworkers at risk, and it disregards the importance of following medical advice.