Choose the word (A, B, C, or D) that best fits each of the blank spaces. The Amazon (1) in a stream near the top of a mountain which (2) Cerro Huagra. The stream is called the Huarco. (3) the Huarco becomes ariver which is known (4) the Ucayali. The Ucayali then becomes the Amazon. The (5) of the Amazon from the (6) of the Huarco to the Atlantic Ocean is 6,448 kilometers. The Amazon (1) ...