Even though they shared the Iberian Peninsula and were both Catholic nations, Spain and Portugal were bitter rivals during the 15th and 16th centuries. After the voyage of Columbus in 1492, Spanish rulers Ferdinand and Isabella asked Pope Alexander VI to defend their claims to the New World against the Portuguese. Pope Alexander VI made a proclamation setting up a boundary about 320 miles west of the Cape Verde Islands. Spain was given exclusive rights to everything west of the line. Portugal got everything east of the line. Later, in the Treaty of Tordesillas, the line was moved westward about 850 miles. The treaty was agreed to in 1506 by Pope Julius II. The treaty described in this passage gave Portugal a claim to

A. Cuba.

B. Venezuela.

C. Mexico.

D. Brazil.