Final answer:
The reduced hot water loads for zero-rated homes is 10% reduction.
Step-by-step explanation:
The question is asking about the reduced hot water loads for zero-rated homes. The term 'reduced' implies that there is a decrease in the hot water loads for these homes. The answer options provided are 10% reduction, 20% reduction, 30% reduction, and No reduction. From the given options, the correct answer would be A) 10% reduction. This means that the hot water loads for zero-rated homes would be reduced by 10%.