Explanation

None of the pairs is correct. The Donbas region — comprising Donetsk and Luhansk — is located in eastern Ukraine, not Syria.

Kachin State lies in the northern part of Myanmar, not Ethiopia.

Tigray, the site of a brutal internal conflict, is a region in northern Ethiopia — not North Yemen.

All three locations have been assigned to entirely wrong countries, so the correct answer is Option D — None.