Suppose the specification for the ADT for the Python dictionary type includes the signature:

$D.$ insert$(k,v)$:$KVD$

where $D$ is the set of dictionaries containing items from the set pairs $KV,K$ is the set of items that can be dictionary keys,

and $V$ is the set of items that can be dictionary values.

If a crackpot decision were made to implement the Python dictionary ADT in Java, which of the following are possible method

headers for the insert$()$ operation?

When considering your answers, assume that an implementation decision has been made to represent elements of $K$ and $V$ as java

classes $K$ and $V,$ and that $K$ and $V$ implement the Comparable interface. Further assume that a class called Dictionary is the name of

the overall ADT $($representing items from set $D$ in the specification$).$

void insert$($Comparable key, Comparable value$)$

void insert$(K$ key, $V$ value$)$

void insert$($Dictionary d$,K$ key, $V$ value$)$

Dictionary insert$(K$ key, $V$ value$)$