$29.$ You are the network administrator for a large bean$-$bag chair company. You are presenting to your supervisor several reasons to make use of cloud computing for handling data processing. Which one of the following would be valid benefits of using cloud computing $($More than one benefit applies$)?$a$.$Avoid startup costs of hardware purchase and software installation.b$.$Reduced physical plant costs.c$.$Increased use of localized resources.d$.$Decrease in user application training time.