If you ask me this is how my logical thought would go:
1) Letter C is out, it is too expensive
2) Letter B is out, it has the same specs as Letter D but more expensive
3) Letter A is out, it is more expensive and samsung memory drives are more known for stability and 128gb is enough for a mining rig
So definitely i'd pick D:
d) Samsung 128GB SSD: 33 US$
meh hardly, anything over 80gb is just dumb, as far as prices goes 35 bucks max. cheaper you can get the ssd the better. I get mine used on ebay since there only being used on a mining rig, 80gb is plenty of space which includes the 16gb windows virtual memory