b) not exactly kefira, but not true
c) possibly true. Who knows?
d) definitely true, and compatible with Orthodoxy
e) definitely true, even if it isn't compatible with Orthodoxy
f) Leave this question out of my results
I'm very comfortable with (c) here. I'm satisfied that many versions of the evolutionary theory contain no kefirah. Given that, why would I be sure it's not true, as per (b)? I like neither (d) nor (e) because I don't think that macroevolution - which is what I assume this question is about, otherwise I choose (e) - has been so conclusively proven to have taken place that all other possibilities regarding the origins of species can be discarded as definitely false.