Question $14(5$ points$)$

$[$Select all correct choices $-$ its a multi$-$select question$]$

Assume that an array consists of at least $18$ elements. The worst case time $($in the asymptotic big$-$oh sense$)$ occurs in linear search algorithm when

Item is not in the array at all

Item is the first element in the array

Item is somewhere in the middle of the array

Item is the $1800$ th element of the array

Item is the last element in the array

Item is the $18$ th element in the array