Need help ASAP pls Which of the following statements about drag is true?

A flat plate has a lower drag coefficient than a sphere.
Objects with a low drag coefficient will have less drag force than objects with a higher drag coefficient.
A drag coefficient is basically the sum of the high and low pressures on the front and back of an object in motion.
Streamlining should be avoided as this usually leads to higher drag coefficients.

An external consultant recommends that a plant installs a bank of capacitors for power factor correction. this will reduce the peak electrical demand charges by an average of 93 kw every month. the plant current pays $13 per kw in peak demand charges. the capacitor bank will include 223 kw of fixed capacitors, and 183 of variable capacitors. the fixed capacitors cost $59 per kw, and the variable capacitors will cost $65 per kw. the consultant charges 21% of the equipment costs to install the capacitors. because this project will reduce the demand for the electric utility, they are prepared to provide a one-time rebate of $42 per kw of reduced demand. what is the simple payback period for this project (in years)?