Please answer the following question: Information: - Ghana, officially the Republic of Ghana is a unitary presidential constitutional democracy, located along the Gulf of Guinea and Atlantic Ocean, in the subregion of West Africa. Spanning a land mass of 238,535km, Ghana is bordered by the Ivory Coast in the west, Burkina Faso in the north, Togo in the east and the Gulf of Guinea and Atlantic Ocean in the south. "Ghana" means "Warrior King" in the Soninke language. - An ocean (the sea of classical antiquity) is a body of saline water that composes much of a planet's hydrosphere. On Earth, an ocean is one of the major conventional divisions of the World Ocean, which covers almost 71% of its surface. These are, in descending order by area, the Pacific, Atlantic, Indian, Southern (Antarctic), and Arctic Oceans. The word "sea" is often used interchangeably with "ocean" in American English but, strictly speaking, a sea is a body of saline water (generally a division of the world ocean) partly or fully enclosed by land. - The Atlantic Ocean is the second largest of the world's oceans with a total area of about . It covers approximately 20 percent of the Earth's surface and about 29 percent of its water surface area. It separates the "Old World" from the "New World". - Techiman is a town and is the capital of Techiman Municipal of the Brong Ahafo Region of Ghana. Techiman is a leading market town in South Ghana. Techiman is together with Sunyani, one of the two major cities and settlements of Brong Ahafo region. Techiman has a settlement population of 104,212 people in 2013. Techiman is located at a historical crossroads of trade routes and the Tano River, and serves as capital of the Techiman Municipal District. - The Gulf of Guinea is the northeasternmost part of the tropical Atlantic Ocean between Cape Lopez in Gabon, north and west to Cape Three Points in Western region Ghana. The intersection of the Equator and Prime Meridian (zero degrees latitude and longitude) is in the gulf. - A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as stream, creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are "run" in some parts of the United States, "burn" in Scotland and northeast England, and "beck" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague. - Ivory Coast or Cote d'Ivoire , officially named the Republic of Cote d'Ivoire, is a country located in West Africa. Ivory Coast's political capital is Yamoussoukro, and its economic capital and largest city is the port city of Abidjan. Its bordering countries are Guinea and Liberia in the west, Burkina Faso and Mali in the north, and Ghana in the east. The Gulf of Guinea (Atlantic Ocean) is located south of Ivory Coast. - Togo, officially the Togolese Republic, is a country in West Africa bordered by Ghana to the west, Benin to the east and Burkina Faso to the north. It extends south to the Gulf of Guinea, where its capital Lome is located. Togo covers , making it one of the smallest countries in Africa, with a population of approximately 7.5 million. - Water is a transparent and nearly colorless chemical substance that is the main constituent of Earth's streams, lakes, and oceans, and the fluids of most living organisms. Its chemical formula is HO, meaning that its molecule contains one oxygen and two hydrogen atoms, that are connected by covalent bonds. Water strictly refers to the liquid state of that substance, that prevails at standard ambient temperature and pressure; but it often refers also to its solid state (ice) or its gaseous state (steam or water vapor). It also occurs in nature as snow, glaciers, ice packs and icebergs, clouds, fog, dew, aquifers, and atmospheric humidity. - The Tano or Tanoe River is a river in Ghana . It flows for 400 kilometres from Techiman in Ghana to Ehy Lagoon , Tendo Lagoon and finally Aby Lagoon in the Ivory Coast where it enters the Atlantic Ocean . The river forms the last few kilometres of the international land boundary between Ghana and Ivory Coast . Indigious local beliefs hold that Taakora , the highest of the Akan Gods on Earth lives at the source of the river . The last few individuals of Miss Waldron 's Red Colobus ( Piliocolobus badius waldronae ) , one of the world 's most threatened primates , are believed to live in the forest between the river and Ehy Lagoon . As of mid- 2008 , this area is slated for logging by Unilever , with the aim to replace it with oil palm plantations . - A sea is a large body of salt water that is surrounded in whole or in part by land. More broadly, "the sea" is the interconnected system of Earth's salty, oceanic watersconsidered as one global ocean or as several principal oceanic divisions. The sea moderates Earth's climate and has important roles in the water cycle, carbon cycle, and nitrogen cycle. Although the sea has been traveled and explored since prehistory, the modern scientific study of the seaoceanographydates broadly to the British "Challenger" expedition of the 1870s. The sea is conventionally divided into up to five large oceanic sectionsincluding the International Hydrographic Organization's four named oceans (the Atlantic, Pacific, Indian, and Arctic) and the Southern Ocean; smaller, second-order sections, such as the Mediterranean, are known as "seas". After reading the paragraphs above, we are interested in knowing the entity with which 'tano river' exhibits the relationship of 'mouth of the watercourse'. Find the answer from the choices below. Choices: - atlantic ocean - gulf of guinea - main - sea - tano river
Answer:
gulf of guinea