Biologist study life at all levels of organization and complexity .atoms genes atom MOLECULE ,CELL,TISSUE,ORGANS,ORGANISM POPULATION, EARTH ,SOLAR SYSTEM AND GALAXIES
Explanation:
In the analogy of a cell as a school, lysosomes could be thought of as a teacher.
Because teacher helps students by solving complex problems in simple way and as teacher lysosomes also helps us by breaking down the complex thing in the cell.
the answer is a or d and im leaning too a so i suggest getting a second opinion sorry i cant help much more than that.