In this question i get it the answer is E.
No. D will be the correct answer. Check my newly added answer on that question.
Its a well order because if i choose any of the sequence it will always have a least element which will relate to everyone.
No. We won't get a least element for every Non-empty subset. For example,
$S$ = $\left \{ a^nb\,\,|\,\,n \geq 0 \right \}$.. this Subset has No least element. Hence, The given Structure $(A, dictionary order)$ is NOT Well-Ordered Structure.