Suppose a subpoint in your notecard is $$Real$-$time info key to management $($Xu$,2019).$ Which of the following is a good example of extemporizing that subpoint in the delivery of your speech?

a$.$As business expert Gail Xu points out clearly in her $2019$ Businessweek article, $$Time Really Is Money,$$ actual real$-$time information and data are the keys to effective and efficient management.$$

b$.$Real$-$time information is the key to effective management.$$

c$.$As Gail Xu points out in her $2019$ Businessweek article, $$Time Really Is Money,$$ real$-$time information is the key to effective management. Companies that can generate customized reports by the day, even by the hour, can constantly monitor their overhead, inventory, output, sales, and prices. If any area falls short, managers can be alerted instantly and make the needed adjustments. The computer in the central office becomes like the dashboard of a car so that changes can be made on the go$.$

d$.$As Gail Xu points out in her $2019$ Businessweek article, $$Time Really Is Money,$$ real$-$time information is the key to effective management.$$