The Red Sea is located to the northeast of Africa, separating Africa from the Arabian Peninsula. Based on your description of the arrows:
- Arrow A points towards the left of Africa (west).
- Arrow B points towards Italy (north).
- Arrow C points towards the Saudi Arabian peninsula (northeast).
- Arrow D points towards the opening to the Indian Ocean (southeast).
Since Arrow C is directed towards the Saudi Arabian peninsula, which is adjacent to the Red Sea, the correct answer is:
C. arrow C