The cell theory took hundreds of years to develop. The scientists over the years added their discoveries to the theory when they were able to scientifically prove their ideas. What aided in the development of the discoveries over the years?
A) The continued development of the microscope helped the scientists see smaller and smaller organisms and their cellular structures.
B) The scientists were able to think for themselves as time went on and were not held back by religious beliefs.
C) The organisms were able to grow larger after several decades, which allowed the scientists to see them clearer.
D) The development of eyeglasses that were used helped the scientists look deeper into cell structures.