I find the technique used in these videos for 'pick the middle' questions useful
they might help you :)
https://www.youtube.com/watch?v=W4XhoteuU2M
https://www.youtube.com/watch?v=ZmuuFqJYnQo
https://www.youtube.com/watch?v=ImYUSffFKBs
And some study tips in general for the UMAT...