Which of the following statements cite evidence that supports or led to the discovery of the cell theory. Choose ALL that apply.

The question is incomplete as it lacks the group of choices required to answer. However, the correct answer on the basis of general information and knowledge is as follows:

The cell theory expresses that: all living things are made out of at least one cell; the cell is the essential unit of life; new cells emerge from existing cells.  

the correct option is option d