The correct answer is A. Africa.
Africa is the world’s second-largest and second-most populous continent, after Asia. At about 30.3 million km2 (11.7 million sq mi) including adjacent islands, it covers 20% of the Earth’s total surface area and 24% of its land area. With 1.3 billion people as of 2020, it accounts for about 16% of the world’s human population.
Africa is bordered by the Mediterranean Sea to the north, the Suez Canal and the Red Sea to the northeast, the Indian Ocean to the east, the Atlantic Ocean to the west, and the Southern Ocean to the south. It is separated from Asia by the Isthmus of Suez and the Red Sea to the northeast, and from Europe by the Mediterranean Sea to the north.
The continent is divided into 54 countries, most of which are former colonies of European powers. The largest country in Africa is Algeria, followed by the Democratic Republic of the Congo, Sudan, and South Africa. The most populous country in Africa is Nigeria, followed by Ethiopia, Egypt, and the Democratic Republic of the Congo.
Africa is a diverse continent with a wide range of climates, landscapes, and cultures. The Sahara Desert is the largest hot desert in the world, while the Congo Basin is the largest rainforest in the world. The Nile River is the longest river in the world, and Mount Kilimanjaro is the highest mountain in Africa.
Africa is a land of contrasts, with some of the poorest countries in the world and some of the richest countries in the world. It is a continent with a rich history and a bright future.
Option B, Asia, is the largest continent in the world by both area and population. It is located primarily in the Eastern and Northern Hemispheres. It shares the continental landmass of Eurasia with the continent of Europe and the continental landmass of Afro-Eurasia with both Europe and Africa.
Option C, Australia, is the smallest continent in the world by both area and population. It is located in the Southern Hemisphere and Oceania. It is the only continent that is also a country.
Option D, Antarctica, is the coldest, driest, and windiest continent in the world. It is located in the Southern Hemisphere and is almost entirely covered by ice.