<span>A nerve is a bundled unit of nerve fibers located in the ide peripheral nervous system of the brain and spinal cord, connecting various parts of the body. These are the axons and are cable-like bundles which provide a way for all the electrochemical signals. They are of 3 types: afferent, efferent and mixed nerves. </span>
Answer:
The correct answer is c. smoking
Explanation:
Cigarette contains tobacco and it is identified that cigarette smoke has up to 7000 chemicals out of which 250 are poisonous and 70 chemicals are found to be carcinogenic.
Smoking is the main cause and greatest risk factor for bladder cancer. The person who smoke regularly are 3 times more prone to get bladder cancer than non-smokers. Smoking causes cancer in other organs and tissue like lungs, mouth, esophagus, throat, liver, pancreas, stomach, etc. Therefore the correct answer is c.
