For question 13, "The only oral myths that have survived are the ones that were eventually written down" my two points were "survived" & "written" I interpreted this as "only" being the necessary indicator so the idea that follows is the necessary which would be "survive" meaning: written→survive

why is it survive→written?

for question 10, I understand /h. however, could you also draw the conclusion that Mr. White could grow weed then make meth?

are negative rules usually wrong answers?