Chemistry question help pls

Hi, please could I have help on why 1 is correct?
Question: https://ibb.co/6CmmgRS
Thank you!

The new bonds can only be formed to carbons that were once part of the C=C bond.
If you look at the structure of 1, the new bonds are formed to carbons that are adjacent to each other, which is consistent with a C=C bond being broken.

To help you visualise this question better, I have (crudely) edited the photo to show what happens if you rub out the new bonds formed and then draw in a new bond between the two carbons that had formed the new bonds. The ones that reveal a bunch of cyclohexene molecules having done this are possible.
Also notice that 3 doesn’t even show a whole number of repeat units and so I had to draw in another cyclohexyl group?

Thank you the diagrams are very helpful! But I’m confused about the difference between 1 and 2, shouldn’t the bond be like the one in diagram 2, is it possible to have another cyclohexane molecule fill that gap?

I’m trying to understand what you mean by this.
If I had to guess, you are trying to ask whether the 6 atoms forming the ring in the middle of molecule 1 could come from the same cyclohexene molecule. For that to be the case, you’d need the cyclohexene molecule to have more alkene groups and to react it with a different molecule. As such, only the arrangement of cyclohexene molecules I have shown previously would allow molecule 1 to form.
I am still working out what you mean by “shouldn’t the bond be like the one in diagram 2”. The newly formed bonds upon polymerisation are all C-C single bonds and the bonds broken upon polymerisation are all C=C double bonds. All I have done is rubbed out any C-C single bonds that join the cyclohexane rings and then added double bonds across the carbons in each monomer that once had the bonds to other monomers.