$17.$For the representation of a many$-$to$-$many strong entity relationship in a relational database design, which of the following statements is not correct?

$($A$)$Many$-$to$-$many relationships cannot be directly represented in a relational database design.

$($B$)$Many$-$to$-$many relationships are essentially broken into two one$-$to$-$many relationships by creating an intersection table that represents the relationship itself.

$($C$)$The intersection table takes its key as a combination of the keys of the two original, or parent, entities. $($D$)$Each of the parent entities has a one $($child$)$ to many $($parent$)$ relationship with the intersection table.