Leucippus and democritus proposed the "first" atomic view of matter. they arrived at this view based on
a) many experiments.
b) careful measurements.
c) philosophical and intuitive speculation.
d) all of the above contributed to their atomic view.

C) philosophical and intuitive speculation

Explanation:

Hi

Leucippus and Democritus proposed the concept of an atom based on philosophical speculation as a way of explaining reality with the scarcity of data available at that time.

The ideas of  Leucippus and Democritus were rejected at that time but later retaken by Dalton when proposing his atomic model.

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