Question

cannabis use ________.

○ can harm mental health in the long term.

○ affects the body and brain only in the long term.

○ has been shown to help depression and anxiety.

○ does not have any health benefits at all, both short- and long-term.

Explanation:

• For the option "affects the body and brain only in the long term": Cannabis use can have short - term effects on the body and brain (e.g., altered perception, coordination issues immediately after use), so this is incorrect.
• For the option "has been shown to help depression and anxiety": Most research shows that cannabis use can exacerbate mental health issues like depression and anxiety rather than help, so this is incorrect.
• For the option "does not have any health benefits at all, both short - and long - term": Some research suggests potential medical benefits in specific cases (e.g., for pain management in certain medical conditions), so this is an over - generalization and incorrect.
• For the option "can harm mental health in the long term": Long - term cannabis use has been associated with an increased risk of mental health problems such as psychosis, anxiety disorders, and depression, so this is correct.

Answer:

A. can harm mental health in the long term.