our trial specified to do only 2 core and as many supplementary as you liked. i did 2 supps. however, like sarah168, one of my supps is poetry, so i was going to steer away form browning anyway. im not 100% sure, but i dont think they've ever asked you to talk about all 3 core texts.
I sincerly hope so. They've given my school a "You should always know three core texts just in case they ask for three..." so now I'm depressed... it means I have to go over Shipping News again :'( (exam in 3hrs and 15mins. Eeek!)
our trial said refer to two prescribed texts and texts of your own choosing. It didn't specify how many other texts... but i did 2. It should be a min of 2 related.