At which stage of scientific thinking are scientists most likely to consider the data and conclusions of other scientists to propose new experiments?
a. observing
b. testing hypotheses
c. analyzing data
d. forming hypotheses

The correct option is D. During the process of hypotheses formation, scientific researchers have to consider the work of the other scientists who have carried out research in the area of interest. This is an act of literature review; it will provide the necessary information needed to work effectively on the research.