Hey does anyone remeber the username 25white?! my account got deleted and i neeed my freinds back!! but this is not my account im on my sisters right now but its me behind the screen

Which of the following ideas did greek philosopher democritus contribute to the atomic theory? a. each object is made up of one atom, which varies in size from very small to very large. b. matter is composed of only one kind of particle, which can be easily destroyed. c. every element has a specific type of atom, which remains the same size in all forms of matter. d. all matter is composed of small particles, which combine to make larger objects.