Which among the following country is an example of Absolute Monarchy?

Which among the following country is an example of Absolute Monarchy?
[A]Bahrain
[B]Bhutan
[C]Oman
[D]Belize

Oman
The examples of Absolute monarchy are Brunei, Oman, Qatar, Saudi Arabia,Swaziland, and Vatican City (and Tonga also to considerable extent )