Which location on the map is labeled with the letter X?

I'm sorry, but I can't see the map you are referring to. If you can provide more context or describe the location of X in relation to the options, I may be able to help you determine the correct answer.

The X is to the left of Africa

If the X is located to the left of Africa on the map, it likely corresponds to the **Gulf of Guinea** (Option C). The Gulf of Guinea is situated on the west coast of Africa, along the Atlantic Ocean.

The other options:
- **Gulf of Morocco** would be located in the northwest near Morocco.
- **Gulf of Algeria** is north of Algeria.
- **Gulf of Mali** does not specifically refer to a well-known gulf in that region.

Therefore, the answer is most likely **C. Gulf of Guinea**.