Question

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​

Answer 1

a

Step-by-step explanation:

I think if Its not right I'm sorry