I think the correct answer to this question is B. Respiratory Infection.
Answer:
What happens to the brain is the brain starts to adjust to the dopamine. And because of that the neurons will begin to make less dopamine. And less dopamine will signalise in the brain.
When you assess a guest, you should know his/her identity by
asking a valid photo with state identification card, valid passport or driver’s
license so you may be able to know his/her name, address and date of birth. If
the guest is checking in, ask for the confirmation of his/her booking. Then
compare his/her identification with the booking form to verify that the guest
is the same person who made the booking.
After graduating, Einstein faced major challenges in terms of finding academic positions, having alienated some professors over not attending class more regularly in lieu of studying independently. Hope this helps !