Alpha$-$Beta pruning: A maximizing parent node P has the current optimum value as $45.$ It

passed that value to a child node M$,$ a minimizing node. We know that this node M may

receive values $75,50,47,$ and $42$ from its children nodes A$,$ B$,$ C$,$ and D$,$ respectively, in this

order. M may terminate itself during the search after which one of these children nodes

returns the corresponding value? $[$Draw the tree yourself to visualize, if necessary.$]$

after C returned

after B returned

M will finish its search, i$.$e$.,$ after E finishes

after A returned