I believe the answer is A. horizontal.
Horizontal lines communicate calm feelings, which is definitely something you want to experience if you are going to a vacation resort. You usually go there with your family or on your own to rest from the outside world, so you don't want there to be any chaos.
The organ is considered the king of instruments. An organ is a large musical wind instrument having rows of pipes. The pipes of the organ are sounded by compressed air. The pipes are controlled or sounded from a large musical keyboard.
M, M, m, A, D, M, A, M, m for the first line i haven’t done this for years since i finished theory a long time ago so i might be wrong for two of them