Answer:
<u><em>The South China Sea is bounded on the west by the Asian mainland, on the south by a rise in the seabed between Sumatra and Borneo, and on the east by Borneo, the Philippines, and Taiwan.</em></u>
These look slightly different when you click on them, but the arrow does not look jumbled up or "squished", I'm going to say the arrow. It should have symmetry horizontally. I'm picking this based on how the pictures look online. Good luck with your work!
The river would most likely look old and nasty all the water would have been evaporated from the river
The answer is gonne be the 1 one
In my opinion, I would say B) is the best answer.