Final answer:
The Spanish, led by Francisco Pizarro, conquered the Inca Empire in Peru, after being impressed but undeterred by the Incas' sophisticated systems and resilience represented by uprisings such as the siege of Cuzco.
Step-by-step explanation:
The Spanish conquerors met and eventually overcame the Inca Empire in Peru. The answer to the question, 'Which Indian tribe did Spain conquer in Peru?' is b) Incas. The Spanish, led by Francisco Pizarro, were initially impressed by the Inca's sophisticated social and economic systems, but despite this, they capitalized on the opportunity to conquest, particularly exploiting the chaos caused by European diseases to which the Inca had no immunity.
When the Spanish arrived in the Andes, they found an empire that had developed road systems rivaling those of the Romans and had a complex administration system for managing its vast territories. The Inca also had storehouses for times of need, reflecting a form of resource management. Despite fierce resistance, epitomized by Manco Inca's siege of Cuzco in 1536, the Spanish were able to defeat the Inca, mainly due to their superior weaponry and the internal divisions within the Inca Empire. Ultimately, the Spanish conquered and established control over the Inca administration and resources, placing the Inca Empire under the rule of a Spanish governor and exploiting its resources, particularly silver.