The correct answer is D) a dam.
The other options of the question were A) a highway. B) the military. C) a canal.
The United States backed out of financially helping Egypt build a dam.
We are talking about the Aswan Dam, in Aswan Egypt.
This dam was the product of impressive technology that benefited the population in Egypt that so much needed water. It is located on the border to Sudan and water comes from the Nasser Lake and the Nile River. It took 8 years to finish the construction. It started in 1960 and ended in 1968.