Answer:
You didn't include the options in your question. The complete question is given as:
A culture of living cells includes a solution called A) concentration B) flask C) medium D) slide
The Correct answer is option C) Medium
Step-by-step explanation:
Cell culture is a way of growing cell in an artificial environment using a controlled condition. The cell is normally isolated from it's living cell.
The artificial environment need to be regulated in terms of temperature, PH level etc.
A medium through which nutrients such as vitamins and minerals for the growth of the cell is added.