Answer:
B. Cells are the basic units of structure and make up tissues.
Explanation:
According to the cell theory, cells can be described as building blocks of an organism. All living things are made up of cells. All cells are made up of former living cells. The cell theory discarded the previous excepted theory of existence of cells from non- living things.
The image shows that in multicellular organisms like plants, different cells are present. Cells of a similar type combine to make tissues.
