Answer:
The best option which contains a sentence with a perfect grammar structure is : Moreover, students will benefit from having the most current information. This sentence in quite concise and includes only formal language. Formal style does not accept shortenings that you can see in the next option (info) and informal vocabulary (kids) that is placed in the third option.
Explanation:
External because it's against someone other than yourself
Answer: Hamlet's characters are neither all good nor all bad and that the play has a somber, sinister mood
