Statements: i. The life today is too fast, demanding and full of variety in…

Concept: In cause-and-effect reasoning, one statement is the cause of the other only when it directly gives rise to the outcome named in the second statement. The two statements are independent causes only if no such link exists between them, and they are effects of independent causes only if both arise from some other, unstated originating event rather than from each other.

Application: Statement I describes a broad condition -- a fast, demanding, and stressful modern lifestyle. Statement II reports a specific outcome -- a rising rate of teenage suicide. The stress described in Statement I is a recognised trigger for psychological distress, and increased psychological distress is a plausible direct driver of the outcome in Statement II. So Statement I functions as the cause and Statement II as its effect.

Cross-check against the other readings:

• Reversing the direction fails: a suicide-rate statistic cannot itself make daily life faster or more stressful.

• Calling them independent causes ignores the direct link between the named stressor in Statement I and the well-documented outcome in Statement II.

• Calling both effects of some other cause is unsupported, since Statement I is phrased as a cause, not as an outcome of anything else.

Result: Statement I is the cause and Statement II is its effect.