When educating a person starting medication to treat tuberculosis (TB), which activities or actions are safe?

When educating a person beginning medication to treat tuberculosis (TB), it's crucial to focus on actions that minimize the risk of transmission. Sharing toothbrushes and food can pose a danger since TB can spread through saliva and close contact with respiratory droplets, which could occur during meals or personal grooming. Kissing and hugging are similarly high-risk activities because close physical contact can facilitate the exchange of infectious droplets.

In contrast, shaking hands and touching bed linens are generally considered safe practices. While TB is primarily spread through respiratory droplets, the risk of transmission through casual contact, such as shaking hands or touching inanimate objects like bed linens, is significantly lower. Therefore, option C correctly identifies safe activities, as they do not involve direct exchange of respiratory secretions, making them appropriate recommendations for someone undergoing treatment for TB.