Single-use earplugs require a professlonal fitting before they can be used. A) True
B) False

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.

i think that the answer is c

catya your not at all which answer i've seen you do this on another question!