Which statement best describes Volt-Var control implemented by PV inverters?

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Volt-Var control uses the inverter’s ability to switch reactive power on or off to help keep the grid voltage within limits. Modern PV inverters are capable of not only delivering active power (the real energy from the sun) but also producing or absorbing reactive power, all within what the device can safely handle. When the local voltage tends to rise, the inverter can reduce its reactive support or absorb reactive power to push the voltage down; when voltage tends to fall, it can increase reactive support to push the voltage up. This dynamic adjustment is why PV inverters can actively assist voltage regulation on the distribution network, rather than just supplying real power. The other statements miss this functional capability, either claiming inverters only produce active power, or requiring dedicated storage, or claiming Volt-Var control isn’t related to voltage.