A Linux administrator installed a new network adapter and temporarily disabled the network service from starting on boot. The partial output of chkconfig is as follows: 
Which of the following commands BEST describes how the administrator should re-enable the network service?
Definitions:
Midpoint Formula
A method used to calculate the elasticity of demand or supply, assessing the percentage change in quantity demanded or supplied relative to the percentage change in price.
Price Elasticity
A measure of how much the quantity demanded of a good or service changes in response to a change in its price.
Price Elasticity
A measure of the responsiveness of quantity demanded or supplied of a good to a change in its price.
Midpoint Formula
A method used in economics to calculate the elasticity of demand or supply by taking the average of the initial and final prices and quantities.
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