Final answer:
The use of marijuana cannot be concluded to cause cancer based on the given information.
Step-by-step explanation:
Based on the information provided, it cannot be concluded that the use of marijuana can cause cancer. While there have been studies on cannabinoids present in marijuana, including THC, the FDA has approved THC-based drugs for specific medical purposes, such as treating nausea and increasing appetite in certain conditions. Additionally, there is ongoing research on marijuana and its components for various diseases and conditions.