Urn A contains 10 yellow balls and 7 red balls. Urn B contains 4 yellow balls and 7 red balls. Urn C contains 12 yellow balls as well as 3 red balls. An urn is picked randomly (suppose that each urn is equally likely to be chosen), and then a ball is picked from selected urn. Determine the probability that the selected ball came from urn B, given that it was yellow ball?
a) 0.4567
b) 0.0834
c) 0.2076
d) 0.3358
e) 0.0674