Based on the description you provided, region Number 3 does not correspond to the areas labeled A (Turkey), B (Cyprus), C (Syria and Israel), or D (the Sinai Peninsula). However, if region Number 3 is specifically in relation to the other labeled areas, then it is likely referring to a separate region that is not named.
Since you mentioned the map has circled areas and those labels correspond to specific geographic locations, the answer would depend on the specific location of Number 3 concerning those labeled areas.
If you need to categorize it based on the supplied options, there's not enough context from the original labels to specify an exact answer. However, assuming it refers to an area commonly associated with the Eastern Mediterranean, if it is located near to Israel and Syria, it might be identified as Palestine (Option B).
Please confirm if you have any additional context or more details about the location of Number 3 for a more precise answer.