A clarifier or a word that describes a noun
Dedication, integrity and responsibility are elements of professionalism that make a person successful in her field. By taking ownership of their roles and duties, professionals make names for themselves and usually find promotion, opportunities and repeat business come easily to them.
The answer is number 4) These numbers show that teenagers care about others.
Sentences 1-3 show evidence to support the main argument, which is that teenagers help others. Sentence 1 gives an individual example, and on sentences 2 and 3, it presents statistical data.
The answer is probably acid