If you accept either C or D as the correct revision then you have to accept both of them. Hence the best way to treat the sentence is to ignore both of them.
B is not correct either. You can over punctuate.
That leaves A.
Sometimes the right answer to many things is to do nothing. My dad used to say "Don't fix what isn't broke."
A is the answer <<<<<
Answer: B, Evidence suggests that corn arrived in the American Southwest per 2.500 years ago.
Adam and Eve life or death
back and forth lock and key
bacon and eggs lost and found
bed and breakfast man and wife
birds and bees name and address
black and white nice and easy
body and soul null and void
bread and butter peaches and cream
bread and water pen and pencil
bricks and mortar pork and beans
bride and groom pots and pans
business and pleasure prim and proper
by and large profit and
