Explanation:

- More than three persons go before D: This means D could be on Thursday or later, but not Sunday.

- One person between D and F, F goes before D: This implies F could be two days before, like Monday or Wednesday if D is Thursday.

- B after C but not just after: Since C is on Tuesday, B must be on Thursday or Saturday, not Wednesday.

- A goes just before C: Since C is Tuesday, A must be on Monday.

- E just before G: They must be consecutive, and since B can’t be second last, they must occupy the end slots i.e., Saturday and Sunday.

- Neither B nor D goes on the second last day: Means they don't go on Saturday.

- C on Tuesday: So A must be on Monday.

Considering all this, the arrangement is likely:

- A: Monday

- C: Tuesday

- F: Wednesday

- D: Thursday

- B: Friday

- E: Saturday

- G: Sunday

Given the relationships in your question:

- A is related to F due to their positions.

- B is related to E due to their positions.

Therefore, D is related to G. So, the correct option is:

- 3, G