A parallel-plate capacitor is made from two aluminum-foil sheets, each 5.5cm wide and 6.1m long. Between the sheets is a Teflon strip of the same width and length that is 2.8×10^(-2)mm thick. What is the thickness of the Teflon strip in millimeters?
A) 2.8
B) 2.8×10^(-2)
C) 2.8×10^2
D) 2.8×10^(-4)