Answer:
Offering you an educated guess I would say B is the best choice Answer for your question.
These are Portugal and Spain.
Fun fact: did you know that the border separating those two countries is the oldest on earth (excluding natural borders)? It's been almost the same for around 1000 years (but recently they swapped a little land...)
Its called a caste. Caste is a lifelong social group into which an individual is born
Stimulants are often used to treat ADHD