Answer:
IRAN.IRAN.
Explanation:
Iran is in Asia, the Western Asia precisely. It geographically borders the Persian Gulf, Caspian Sea and also the Oman Gulf too.
There are no leading or viable river systems in the country, historically transportation were been done using caravans which moved through routes traversing gaps, going through the mountains. These said mountains helped and provided easy access to the Persian Gulf and the Caspian Sea.
