9) What does the author mean by the use of the word medium in the first paragraph? -0) A) the intervening substance through which impressions are conveyed to the senses or a force acts on objects at a distance B) the halfway mark between two extremes of size or another quality, the average or middle state a liquid or solidified nutrient material suitable for the cultivation of microorganisms D) the element that is the natural habitat of an organism​

Asentence teacher gives the following speech. prepare a brief speech to accompany your science project. the speech will be presented to a faculty panel selected as judges. include a summary of your hypothesis, methods, and results. provide an explanation of any pictures or charts one of your poster. also share any complications you encountered during the science fair process. who is the intended audience for the teachers speech? a. young students. b. peers at the science fair. c. teacher evaluators. d. science professionals