Choosing A Levels...

Today I had to choose my a levels and although I am happy with the three I picked,
English Literature
History
Performing Arts
I still need to choose a reserve and my teacher is giving me until the end of the week to make a decision! I'm currently going between Religious Studies and Geography but I'm just wondering people thought were the best idea to fit my other choices! Hopefully I won't have to actually do my reserve subject but just in case! I'm planning on taking an English route at university of that helps. Not sure exactly what yet! Thank you! 😉 (My teacher recommended Psychology!)