Task: Question Answering
Input (English): Question: When processing flower-nectar into honey bees' extract, a considerable amount of water gets reduced. How much flower-nectar must be processed to yield 1kg of honey, if nectar contains 50% water, and the honey obtained from this nectar contains 35% water?

 Option A: 1.3 kg

 Option B: 1.5 kg

 Option C: 1.7 kg

 Option D: 1.9 kg

 Option E: None of these
Output (English): Option A