Smart Serve Ontario Practice Test – Free Mock Exam & 2025 Study Guide

The correct answer reflects the understanding that combining cannabis and alcohol typically results in increased levels of impairment. This combination can intensify the effects of both substances, affecting motor skills, cognitive functions, and decision-making abilities. Users may experience a greater sense of intoxication and diminished ability to perform tasks that require focus and coordination, as both substances interact in ways that can elevate overall impairment compared to using either one alone.

The other options, such as improved decision-making or reduced risk of poor choices, do not accurately portray the realities of substance interaction. Similarly, suggesting that there would be no change in cognitive functions fails to recognize how these substances can alter mental processing and perception, leading to potential dangers when driving or engaging in other activities that require attention.