I'm not sure I agree with your assessment. Sense datum theory is significantly different from representationalism, since sense data aren't supposed to intentional objects. Disjunctivism is the only form of direct realism anyone takes seriously any more, as far as I'm aware. You may be right about qualia theory, but I have heard people use the term as a stand-in for adverbialism. I suspect that's what it's supposed to represent in the poll.