Answer :
b horses
becasue horse's is explain something about that horse ( look at that horse's tail!)
you dont say my moms hair is prettys (moms is many mothers)
my mom's hair is very pretty
becasue horse's is explain something about that horse ( look at that horse's tail!)
you dont say my moms hair is prettys (moms is many mothers)
my mom's hair is very pretty
its not c. because horse's means horses is which is incorrect. its not a because you only put a ' when its ending mainly in s. So I think its B. Hope this helps!