Question

choosing relevant multimedia
which image would be the best choice for convincing an older audience to take action on access to clean water?

Explanation:

An older audience is likely to respond most strongly to imagery that clearly links polluted water to direct, relatable harm to health and daily life. The middle image shows sewage and trash contaminating a natural water source, which is a clear, straightforward depiction of unsafe water that directly threatens access to clean, usable water. The first image focuses on air pollution from cars, which is unrelated to clean water access. The third image shows industrial runoff, which is less immediately relatable to personal, daily water use than the visible sewage and trash in the middle image.

Answer:

The middle image (sewage and trash contaminating a natural water source)