In a Genetic Association Study,what Does an Odds Ratio Represent

In a genetic association study,what does an odds ratio represent?

A) The ratio of those with a particular allele who manifest a trait versus those with the allele who do not manifest the trait
B) The risk of manifesting a trait in those with a particular allele compared to the risk of manifesting the trait in those without the allele
C) The risk of the trait in those with the major allele versus the risk in those with the minor allele
D) The genetic risk that you will have a particular trait versus the environmental risk that you will have the same trait
E) The likelihood that someone with both genetic and environmental risks will express a trait versus the likelihood when they have neither risk