Which was ventor’s contribution to science?

a) discovered the existence of single-celledorganisms.
b) invented the light microscope.
c) discovered the structure of dna.
d) invented a synthetic cell

"Invented the synthetic cell" is the one among the following choices given in the question that was Ventor’s contribution to science. The correct option among all the options that are given in the question is the fourth option or option "D". I hope that this is the answer that has come to your actual help.