Singapore is one of the few city-states in the world and at 704.0 km² (272 square miles) it is the smallest country in Southeast Asia.

It is an island nation located at the southern tip of the Malay Peninsula. It lies 137 kilometers (85 miles) north of the Equator, south of the Malaysian state of Johor and north of Indonesia’s Riau Islands.

So the answer to your question is:

A. Asia

Singapore is located in the Republic of Singapore near the southern tip of Malaysia and north of Indonesia. The republic is in fact called a city-state because the main island, where about 4,500,000 people live, is separated from Malaysia by a narrow strait, Johore, and from Indonesia by the Singapore Strait. There are a few small islands in the republic, but Singapore is where most live. The people are called Singaporeans, though most are Chinese.

There…now you know as much as I do!

Singapore:

At 704.0 km² (272 square miles), it is one of the few city-states in the world and the smallest country in Southeast Asia.