Hey brother, hope your having a great day :),
So, training animals is a long process taking up to 2-3 years. Within those 2 years those animals undertake many many test and examinations to see if they are fit enough to lead a person with a disability! After those 3 years they have a major test defining whether they are suitable or not to be a trained animal!
Hope this helps ,
Cheers
Hello,
I believe that your answer is A. (250,100)
Hope this helps
A. because Japan sells more than it buys. Hope this help you! Have a good day!