Consider the following operations performed on a Set S that is initially empty $($i$.$e$.$ it has no elements, like an empty class list$).$

S$.$add$($b$)$

S$.$add$($c$)$

S$.$add$($a$)$

S$.$remove$($b$)$

S$.$add$($c$)$

S$.$add$($d$)$

This has produced a modified set S$.$

Match each of the following operations on this modified set S to their output. $($That is$,$ consider each of the following operations as the seventh operation after the six above; they are themselves not cumulative.$)$

Question $7$ options:

S$.$find$($c$)$

S$.$size$()$

S$.$find$($b$)$

$1.$

True

$2.$

False

$3.$

$3$

$4.$

$4$

$5.$

$5$