Schleiden and Schwann Stated the "Cell Theory," Which in Its

Schleiden and Schwann stated the "cell theory," which in its modern form says:

A) all organisms are composed of one or more cells, all cells require oxygen and all cells arise by division of other cells.
B) all organisms are composed of one or more cells, all cells are the smallest living things and all cells arise by division of other cells.
C) all organisms are composed of one or more cells, all cells arise spontaneously and all cells vary in size and shape.
D) all cells will arise spontaneously, all cells require oxygen and all cells are composed of one or more cells.