I think it is either B or C. My guess goes more to C. I hope this helps at least a little =)
Its #2 burger.. the structural linguist are.. Charles C. Fries, Edward Sapir, and Leonard bloomfield. There is no one with the last name burger :)
It tell either what someone does or where they are from
F- for
A- and
N- nor
B-but
O- or
Y- yet
S- so
help students remember coordinating conjunctions.