Public health reasoning: Fast, demanding modern life leading to stress vs. rising teenage suicides — select the most defensible cause–effect interpretation.

Given data

• I: Life today is fast, demanding, and varied, often producing stressful situations.
• II: Suicide cases among teenagers are increasing.

Concept/Approach

• Stressful contexts are recognized risk factors for mental-health crises, supporting I → II as plausible causation.

Step-by-Step reasoning
1) High stress load in modern life (I).2) Increased stress contributes to higher incidence of severe outcomes (II).

Verification/Alternative

• II → I is illogical; more suicides do not make life intrinsically faster or more varied.
• Independent or common-cause explanations are less direct than the stated mechanism.

Common pitfalls

• Overlooking that the statement speaks generally about stress but focuses effects on teenagers; however, teens are embedded in the same societal context and are particularly vulnerable.

Final Answer
Statement I is the cause and statement II is its effect.