Outcomes that meet your requirement are
(1, 6), (2, 6), (6, 1), (6, 2)
for a total of 4 favorable outcomes.
There are 11 outcomes in which one die shows a 6, so your probability is ...
B. 4/11
16
.......................
Should be C.
This is the first time I know FOIL represents : First, outer, inner and last. It represents the method to solve the product of binomials.
I think it’s sampling error