Answer:
A- making an observation and asking a question
Explanation:
Scientific method is the set of basic norms that must be followed for the production of knowledge that has the rigor of science, that is, it is a method used for research and proof of a given content. The part of the scientific method being shown in the question above is "making an observation and asking a question", because the question shows that the forest engineer wondered why a forest had mature hemlock and very few young hemlock, so that If an engineer could ask this question, he would have had to observe this before.
