What is a stage of both technological design and scientific investigation?

A. conduct an experiment

B. research-related information

C. design the solution

D. develop a hypothesis

Pretty sure that the answer is A

A. conduct an experiment

Explanation:

Experimentation is the method by which scientists analyze natural phenomena in the hope of obtaining new knowledge. Good experiments follow a logical design to isolate and test precisely defined and specific variables. By learning the fundamental principles of experimental design, you can then apply them to your own experiments. Regardless of its scope, all quality experiments operate according to the logical and deductive principles of the scientific method