The 1959 Nile Water Agreement between of Egypt and Sudan led to the construction of the Aswan High Dam. So the correct option in regards to the given question is option "B". This was an agreement that was supposed to bring to an end the long conflict regarding the sharing of the waters of river Nile, but it failed to do so. The Aswan High dam is an embankment that has been created by Egypt in Aswan. This dam was built by Egypt between the years 1898 and 1902. This dam was of immense importance to the Egyptians as it not only protected them from getting flooded each year, but it also was a source for irrigational water and for producing hydroelectricity.