Sagot :
Answer:
B. Democritus
Explanation:
In the 5th century BCE, Leucippus and his pupil Democritus proposed that all matter was composed of small indivisible particles called atoms.
Democritus came to the conclusion that matter could not be divided into smaller and smaller pieces forever. He reasoned that eventually the smallest piece would be obtained. This piece would be indivisible. He named this smallest piece of matter atomos, meaning "not to cut."