Suppose that you are asked to analyze the Big$-$Oh of the following method pop$().$ What pieces of additional information which need to give a perfectly accurate answer? Select all that apply.

public ItemType pop$()\{$

if $($isEmpty$())$

throw new NoSuchElementException$()$;

ItemType element $=$ top. getElement$()$;

top $=$ top.getNext $()$ ;

n$--$;

$\}$

return element;

The number of times pop$()$ will be called.

The Big$-$Oh of isEmpty$().$

The Big$-$Oh of the constructor of the NoSuchElementException class.

The type that will be used in place of ItemType.

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