Answer:
To make a better and informed decision
Explanation:
The main reason why the multiple alternatives are searched to take a single decision is "To make a better and informed decision."
Given that alternative decisions are expected to be drawn from a wide range of experience, experimentation, and research knowledge. These alternatives are then assessed and evaluated before reaching a final decision.
Hence, in this case, the main reason for conducting an alternative before making a decision is to "Experience, experimentation, and research."
D - he faills to emphasize words to highlight his main point
D - sunshine is the correct answer. "Bright" is an adjective, not a noun, "protect" is a verb, and "eyes" are not in singular, but in plural.