Task reminder: Read all options before the audio starts. Select the paragraph that best summarises the recording. The correct answer matches the main idea and tone, not just one detail.

1. Sample Text 1 — Artificial Intelligence Bias

A. A. AI systems are entirely objective because they process data without human emotional involvement.
B. B. AI systems can perpetuate and amplify social biases present in their training data, making fairness, transparency, and accountability essential design requirements.
C. C. The solution to AI bias is to remove all demographic data from training datasets, which eliminates discrimination entirely.
D. D. AI bias is a theoretical concern that has not yet produced documented real-world harms.

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2. Sample Text 2 — The Gut-Brain Connection

A. A. The gut bacteria have been definitively proven to cause depression and anxiety in all affected individuals.
B. B. Emerging research suggests that the gut microbiome may influence mental health through the gut-brain axis, though the field remains early-stage.
C. C. The gut and brain are connected only by the digestive system, with no neurological or hormonal pathways involved.
D. D. Diet has no measurable effect on gut microbiome composition or mental health outcomes.

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