Hi
There is a good chance that moving her will cause her to abandon the eggs that are left. How many are there and how long do they have to go. A broody will normally stay on the nest for a couple of days to hatch slower eggs but after that time it is important for her to get up and start looking after the chicks, both for their welfare and hers. If these eggs were all set at the same time, then there should only be 24hrs at most between hatching. If hens have been adding to her clutch during her brooding period and you have not been removing them then you cannot reasonably expect her to keep sitting whilst she has chicks to look after. You should either have an incubator ready to take over or a brooder to put the chicks into so that she will stay with the eggs. Personally I hate the idea of taking chicks off a broody hen for several reasons, so I would go with option A and beg borrow or steal an incubator for a few days if you can find one not in use at this time of year!
Another option is to fit a cover over the nest so that she and the chicks are confined to the nest for a few more days with food and water available of course but she may end up soiling the nest. Are the remaining eggs viable. Have you candled them at all?
I have multiple broody hens that rear chicks each year and I've never had another hen or cockerel interfere with a broody or her chicks even low ranking ones but I free range, so they have plenty of space to head off and do more interesting things, so moving her and the chicks to a dog crate in the coop after hatching is complete for a few days may be beneficial so that you can see how things go with the other birds.
Good luck with them
Barbara