The treaty above provides evidence for which of the following historical developments?

(A) Monarchs were involved in and interested in voyages of discovery. (B) Joint-stock companies sponsored colonization efforts in the western and eastern hemispheres. (C) Trade of guns and slaves between Europe and Sub-Saharan Africa. (D) The Scientific Revolution and the discovery of heliocentricity.Explanation: The treaty is a clear sign that monarchs were willing both to wage war and settle disputes over land exploration, which aligns with (A). Eliminate (B) because neither Portugal nor Spain used joint-stock companies in their colonization efforts. Eliminate (C) because the treaty does not discuss the trading implications with Africa. Eliminate (D) because the treaty makes no mention of formal scientific research, just exploration. Choice (A) is the answer.