Individuals who have consumed alcohol within 24 hours prior to exposure to H2S can tolerate which of the following?

Correct Answer: Option B — smaller than normal concentrations of H2S

Alcohol consumption impairs the body's physiological response to toxic gases. It compromises the respiratory and nervous systems, significantly reducing an individual's tolerance to Hydrogen Sulfide (H2S). Consequently, those who have consumed alcohol within 24 hours are susceptible to adverse effects at concentrations much lower than the standard threshold for healthy individuals.