A student doing the lab gets V₁ = 1.04 mL, V₂ = 1.92 mL while calibrating his pipet and an average diameter of the film of 36.0 cm. The oleic acid solution has a concentration of 0.50% (v/v). What is the average area of the film?
a) 648 mm²
b) 1,872 mm²
c) 3,456 mm²
d) 6,480 mm²