Please help me

Matthias Schleidan observed plant leaves under a microscope. How did this help contribute to cell theory?
A- It helped to show that all plants are made of cells.
B-It helped to show that all plants are made of chloroplast.
C-It helped to show that plant cells can be created from soil.
D- It helped to show that plants cells cannot function independently.

After frida stops exercising, she continues to breathe heavily. what is most likely occurring in her body? heavy breathing during exercise has produced an oxygen surplus in her muscles. this oxygen is being transported to her lungs. this is a result of aerobic respiration. heavy breathing during exercise has produced a carbon dioxide surplus in her muscles. lactate is being transported to her liver. this is a result of aerobic respiration. strenuous exercise has caused her body to be in carbon dioxide debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration. strenuous exercise has caused her body to be in oxygen debt, and she is breathing hard while lactate is transported to the liver. this is a result of anaerobic respiration.