The correct answer is A) that Spain would control everything west of a line of demarcation; Portugal would control everything to the east
Explanation
The Treaty of Tordesillas, June 7, 1494, consists of a series of agreements between King Ferdinand II of Aragon and Queen Elizabeth I of Castile, on the one hand, and King John II of Portugal on the other, in by virtue of which a new demarcation line is established between the two crowns, which runs from one pole to another, 370 leagues west of the Cape Verde Islands. The Treaty was finally signed after laborious diplomatic negotiations between the ambassadors and lawyers of both kingdoms. The modification of the demarcation line that divided the world between Spain and Portugal gave rise to Brazil, whose eastern extremity was located within the Portuguese zone. This document is essential to understand the history of America and the economic and cultural relations between America and Europe. So, the correct answer is A) that Spain would control everything west of a line of demarcation; Portugal would control everything to the east.