Which activity will best prevent the common cold?

a . taking antibiotics
b. taking regular showers
c. brushing your teeth regularly
d. not touching your mouth, nose, or eyes

Not touching your mouth, nose, or eyes will best help prevent the common cold. Correct D Best protection from the common cold and flu is frequent hand washing because germs are often transferred to others through household objects -- telephones, doorknobs and hands washing can get rid of most potentially harmful germs.

tell their parents and make sure she gets from a counselor or therapist. be supportive and be there for her. be a kind and good friend. spend time with her to make her feel like she's not alone. i'm not a professional but i really hope they stays strong.