Bosphorus strait connects the Black Sea with _____?

Bosphorus strait connects the Black Sea with _____?

آبنائے باسفورس بحیرہ اسود کو _____ سے جوڑتا ہے؟
Explanation

The Bosphorus Strait connects the Black Sea to the Sea of Marmara.

It is also known as the Istanbul Strait and is located in Istanbul, Turkey.