The correct answer is D.
The company that was originally constructing the canal could not afford to finish the project.
Step-by-step explanation:
The Panama Canal is an artificial canal that connects two oceans, the Atlantic and the Pacific. The canal construction began on 1881 as one French company decided to be in charge of this project; however, the company was unable to end it due to high rate mortality of workers caused by the conditions of the territory and lack of funding to continue with the construction. Due to this, in 1904 the United States continued with the project after buying not only the equipment from the previous company but all Panama territory. Therefore, the situation that enabled the United States to become involved in the construction of the Panama Canal was that "the company that was originally constructing the canal could not afford to finish the project".