Answer:
Use a cup but no without a drinking straw to drink
Explanation:
1. A person who is already infected by bacterial may spread the germs by sneezing and coughing. This is because of the reason that humans any form of mucous allows the invaded microbial communities to proliferate because of excessive nutrients supply for their growth. It has been scientifically studied that approximately 100,000 germs can come in the air via single sneezing or coughing. So refraining from sneezing or coughing can help avoid spreading the germs.
2. We know that our eyes contain ocular lubricant (mucous) that helps to moisturize the eyes. Therefore, it can also host the contagious germs. Hence, by avoiding the rubbing of eyes can help to reduce the chances of germs spreading.
3. Lastly, smoking is a combination of inhaling and exhaling gases produced by the combustion of tobacco or other material. We know that our lungs carry mucous that helps in oxygen diffusion from air to the blood. Therefore, an infected person can contaminate the air because of the germs spread.
4. The last option is incorrect because using a cup without straw would contaminate the cup surface and any person who is exposed to that cup during serving or cleaning may also receive the germs.