In Millikan's experiment, the charge on each drop of oil was measured in coulombs. Imagine the same experiment, but with charges measured in a fictitious unit called a zeet (Z).

Drop Charge (Z)

A) 1.77 * 10⁻¹⁴
B) 4.13 * 10⁻¹⁴
C) 4.72 * 10⁻¹⁴
D) 5.31 * 10⁻¹⁴
E) 7.67 * 10⁻¹⁴

What is the charge on an electron in zeets?
Express your answer in zeets using two significant figures.