Bowel incontinence is an inability to control bowel movements, resulting in involuntary soiling. It's also sometimes known as faecal incontinence. The experience of bowel incontinence can vary from person to person. Some people feel a sudden need to go to the toilet but are unable to reach a toilet in time.
Pretty confident that it is A, judging by that the word composition is used as a combination or a ratio of 2 things. Also none of the other options make sense.
