Answer:
A) "soft" to "hard" evidence
Explanation:
Soft evidence refers to simple experiences, observations and factual details about a situation or an object. Hard evidence refers to empirical and scientific evidence. These are normally facts that have been proven through research work and are in the form of statistical data and research sources. In this case, Mandy presented some stories about whales which means that she first presented soft evidence. Then, Mandy presented facts, statistics, and sources which is hard evidence. Hence, Mandy used the principle of soft to hard evidence to support the material organization effectively.