If 12,000 atoms of helium pass through a 1.50 square meter plate area every 0.305 [___], what is the rate of atoms passing through per unit of time?

a) 2.03 × 10²³ atoms/s
b) 5.90 × 10³ atoms/s
c) 5.96 × 10⁴ atoms/s
d) 3.94 × 10⁴ atoms/s