Final answer:
The cumulative load of the appliances would normally be the sum of their individual VA ratings, totaling 7790 VA. However, this total does not match any of the provided options, indicating a possible mistake in the question or that it requires a specific calculation as per the NEC which isn't provided in the question.
Step-by-step explanation:
The question pertains to the calculation of the cumulative load of various appliances, which is a common exercise in studying residential electricity usage and understanding how electrical systems are designed. To find the feeder or service calculated load, we need to sum the volt-ampere (VA) ratings of each appliance. The waste disposal is rated at 940 VA, the dishwasher at 1250 VA, the trash compactor at 1100 VA, and the water heater at 4500 VA.
The total load is therefore:
940 VA + 1250 VA + 1100 VA + 4500 VA = 7790 VA, which is not one of the options provided. Based on the provided choices, it seems there might be a misunderstanding or error in the options given or the VA ratings provided in the question might require a specific calculation rule as per the National Electrical Code (NEC) or other local code for appliance loads, which isn't detailed in the question.