If the words in the sentence,"She showed several sample snaps" are rearranged in alphabetical order,which will be the middle word?

Arrange the given words in alphabetical order and choose the one that comes in the middle.

$A$ group of letters is given which are numbered $1, 2, 3, 4, 5$ and $6$. Below are given four alternatives containing combinations of these numbers. Select the combination of numbers so that the letters arranged accordingly form a meaningful word.
$D, I, F, E, R, N$
$1, 2, 3, 4, 5, 6$

How many meaningful English words can be made with the letters $ARTSE$ using each letter only once in each word?

If it is possible to make a meaningful word with the fourth,the seventh,the eleventh and the thirteenth letters of the word $CATEGORISATION$,which of the following will be the first letter of that word? If no such word can be made,give $X$ as the answer. If more than one such word can be made,give $M$ as the answer.

Arrange the given words in alphabetical order and choose the one that comes first.