Which is a description of fever? increased body temp decreased body temp increased mucus production decreased mucus production

The right option is; increased body temperature

Fever is a higher than normal body temperature of an individual (or generally, a mammal). Fever is a symptom that is usually associated with several infections. Fever can occur as a result of infections such as ear infections, cold or flu which is caused by viruses, urinary tract infection, brain injuries, sore throats and some cancers.