Which of the following is true about a sprain?
a. a sprain is considered a chronic injury.
b. a sprain is considered an overuse injury.
c. a sprain is a stretch or tear of a ligament.
d. a sprain is a stretch or tear of a muscle or tendon.

What is difference between an epidemic and a pandemic? a) an epidemic is a disease; a pandemic is a treatment.b) an epidemic is restricted to a local region; a pandemic is global.c) an epidemic has low mortality; a pandemic has higher mortality.d) an epidemic is caused by a bacterial infection; a pandemic is caused by a viral infection.