Work in Plural form

[Bullet_Bang]

I have a question pals. Could you please go through it a bit and try?

Which of the following sentences are correct?

1. Student A’s work on Hindu Culture, as well as Student B’s work on Greek Culture and Atheism has left a deep impression on me, and is very much related to my field of interest.

2. Student A’s work on Hindu Culture, as well as Student B’s work on Greek Culture and Atheism have left a deep impression on me, and are very much related to my field of interest.

3. Student A’s work on Hindu Culture, as well as Student B’s work on Greek Culture and Atheism has left a deep impression on me, and are very much related to my field of interest.

4. Student A’s work on Hindu Culture, as well as Student B’s and Student C's work on Greek Culture has left a deep impression on me, and is very much related to my field of interest.

5. Student A’s work on Hindu Culture, as well as Student B’s and Student C's works on Greek Culture has left a deep impression on me, and is very much related to my field of interest.

6. Student A’s work on Hindu Culture, as well as Student B’s and Student C's work on Greek Culture have left a deep impression on me, and are very much related to my field of interest.

[Bullet_Bang]

Please kind enough to answer!

[Mister Micawber]

You will get better results if you do not call me 'pal'. This is only your first post, and we are not well acquainted.

These are correct:

1. Student A’s work on Hindu Culture, as well as Student B’s work on Greek Culture and Atheism, has left a deep impression on me and is very much related to my field of interest.

5. Student A’s work on Hindu Culture, as well as Student B’s and Student C's works on Greek Culture, has left a deep impression on me and is very much related to my field of interest.
_________________
Native English teacher at Mister Micawber's

[Bullet_Bang]

Thank you very much Sir, I appreciate your help.