Astudent is revising the sentence below. when i started feeling tired and run down, i made sure to get lots of sleep, drink plenty of fluids, take my vitamins, and perform other preventive measures against getting a cold.
which of the following would be the best replacement word for preventive?

damaging: causing injury

protective: covering or shielding from injury

sedative: having a calming effect

soothing: creating a feeling of calm or comfort