What is the voltage rating indicated by the AV voltage meter for 115VAC?

The correct voltage rating for 115VAC as indicated by the AV voltage meter is 115+/- 11.5 VAC. This rating allows for a certain tolerance around the nominal voltage of 115 volts. In many electrical systems, especially in relation to AC voltage, there is an established tolerance to account for variations in the voltage supply due to factors such as fluctuations in demand and the condition of the electrical infrastructure.

For 115VAC, a common acceptable range is from 103.5VAC to 126.5VAC. The +/- 11.5 VAC signifies that the voltage can safely vary from the nominal value within this range, indicating a total allowable fluctuation of 23 volts. This level of variation is acceptable for the equipment that operates on this voltage, ensuring it functions correctly despite minor fluctuations in supply.

The other options suggest different levels of allowable variation, but they do not align with the commonly accepted tolerance range for a 115VAC system. Thus, the range of 115+/- 11.5 VAC is the most accurate reflection of typical operational standards for this voltage.