I'm totally confused with LORs and what is required and stuff since I may have initially thought the wrong things. I've gathered a pre-health, 2 science, 2 econs, and 2 character references. AECOm says they require a pre-health letter. Do I still need to send 2 science and 1 non-science or can I mix it up by having just 1 science and 2 non-science/econ letters? Hopefully, this question makes sense to people.