What measures are suggested to help control the spread of the virus?

The correct answer highlights a multifaceted approach to controlling the spread of a virus, which is essential in public health. Social distancing helps minimize person-to-person transmission by keeping individuals farther apart, which reduces the likelihood of viral spread, especially in crowded environments. Wearing masks serves as a barrier that can block respiratory droplets, which are a primary means of virus transmission. Additionally, practicing good hand hygiene, such as regular hand washing with soap and water or using hand sanitizer, further decreases the chance of transferring the virus from surfaces to individuals.

This comprehensive strategy addresses multiple routes of transmission, making it more effective than any singular measure. While improved ventilation can enhance air quality and reduce airborne viral load, it is not enough on its own. Increased social gatherings would conflict with the goal of limiting virus spread, and while travel restrictions can be helpful in some contexts, they may not be as effective on their own without the complementary strategies mentioned in the correct answer. Together, social distancing, mask-wearing, and good hand hygiene create a robust defense against the spread of viruses in various settings.