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$17.$ Write the given argument in words and determine whether each argument is valid. Let

p: The for loop is faulty.

q: The while loop is faulty.

r: The hardware is unreliable.

s: The output is correct.

a$.($p $$ q$)->($r $$ s$),$ p$,$r $/$ s VALID

b$.($r $$ s$)->$ p$,$ s $->$ q$,$ p $$ s $/$ r INVALID

c$.($p $->$ r$)->$ q$,($q $->$ s$)->$ p$,$ r $$ s$,$ p $$ q $/$ p $$ q

d$.$ p $->$ q$,$ q $->$ r$,$r$,$ s $->$ r $/$s