Question Statement:
Consider the argument: 'The government claims that building large dams will eliminate water scarcity. **However, large reservoir surfaces lose millions of liters of water to evaporation daily in arid zones.** Therefore, decentralized rainwater harvesting structures are a far more sustainable water conservation approach.' What role does the boldface statement play?
Options:
- (A) It provides evidence used to challenge the government's claim.
- (B) It is the main conclusion of the argument.
- (C) It is a claim that the argument agrees with and seeks to prove.
- (D) It is a background premise of no relevance to the conclusion.