(Help! If possible can you explain how you got the answer plz and thank u) If the average weight of 10 sacks of soil is 40 lbs., the standard deviation is 4 lbs., and this is a normal distribution, what will be the weight of 68% of bags of sand from the same batch?
A.36-44
B.40-44
C.38-40
D.36-40

I think the answer is C but I'm not too sure so if it doesn't sound right don't click it cuz I don't want you get the answer wrong

answer 1 : option "c"

answer 2 : option "d"

answer 3 : option "b"

answer 4 : option "d"

answer 5 : option "b"

answer 6 : option "a"

answer 7 : option "c"

answer 8 : option "d"

answer 9 : option "c"

answer 10 : option "d"

answer 11 : option "c"

answer 12 option "b"

answer 13 option "c"

answer 14 option "c"

answer 15 option "d"

answer 16 option "a"

answer 17 option "b"

answer 18 option "c"

answer 19 option "a"

answer 20 option "a"

answer 21 option "c"

d

answer: y=0 if that is what u r looking for