Love that yer questions are all English cuz that's the only shite I'm decent at other than my spelling. Ye just really read and familiarise yerself with the questions from Mod A, B, C.
For mod C, start mabey planning out what ye might be writing about, especially if yer going in with the idea of makin something up right then and there. Even better with a reflection, which is what I worked with last week, where a good chunk of my planning went into what I could incorporate into my story that I could justify later in my reflection so keep that in your mind. With Mod b and a, are you going in with memorising the whole essay there? Would be a good idea to mentally start working on a thesis, an introduction, and how'd your thesis and evidence will answer the question as you write. Barely any time they give you but if I got out of it alive then you'll be grand. Is this the answer you were looking for