Which of the following is an Enclave country? Republic of Congo, Vatican City, Chad, All of these

Which of the following is an Enclave country? Republic of Congo, Vatican City, Chad, All of these

مندرجہ ذیل میں سے کون سا انکلیو ملک ہے؟ جمہوریہ کانگو، ویٹیکن سٹی، چاڈ، یہ سب
Explanation

Three nations qualify as completely surrounded by another country's land and/or internal waters:

1.       The Republic of San Marino, enclaved within Italy

2.       Vatican City, enclaved within the city of Rome, Italy

3.       The Kingdom of Lesotho, enclaved within South Africa