At its more than $7,500$ restaurants across the country, Pizza Hut's MIS Team gathers useful

data about its consumers from phone orders, online orders, and point$-$of$-$sale

transactions.Additionally, the business keeps track of previous customer orders and retains

all consumer information in digital files.

A$.$ What type of MIS source system is used? $($Explain$)$

B$.$ Explain the $2$ other MIS sources.