Hey!
To add to what other posters have said, general rankings often are very arbitrary, and that ranking doesn't necessarily apply to the quality of the specific course that you (your daughter in this case) are applying to. From personal experience, the course was what spoke to me the most when selecting where and what to study at university. Course rankings are a good starting point, but I wouldn't let that alone decide where to apply to university, as there are a lot of factors such as distance from home, friendliness of the department, ability to study abroad, ability to take a placement year, etc., that should also be considered. Also look at the modules that will be studied for the chosen course at each university, some will place larger emphasis on certain sub-disciplines than others, and some will be more flexible about which modules can be taken than others as well, so do consider this as well.
Best of luck for your daughter's university applications!
^Harry (Lancaster University Student Ambassador)