Question $4(10\%)$:Mrs$.$ Adams bakes cakes at home for events on a contractual basis. With just one oven, she faces a busySaturday morning when she has committed to finishing six orders. Her husband will handle deliveries, whichtakes $15$ minutes each. Assuming she starts baking at $7$:$00$ A$.$M$.,$ she's in for a hectic day with as shown inthe following table:Page $12$ of $12$Event Time required $($min$)$ Delivery Time$17210$:$30$ AM$2409$:$00$ AM$313210$:$00$ AM$43012$:$00$ PM$518611$:$00$ AM$6251$:$00$ PMa. Determine the processing sequence using each of these priority rules: First Come First Served, ShortestProcessing Time, Earliest Due Date and Critical Ratio.b$.$ Determine the performance of each rule using average flow time, average WIP and average days late.Which rule is the best? Explain.