Answer:
The correct answer option is: It does not credit the source in the sentence.
Explanation:
The direct quotation from Childhood Sports Injuries and Their Prevention says that "More than 38 million children and adolescents participate in organized sports in the United States each year."
Here, in the given direct quotation is said to be improperly cited because it does not credit the source in the sentence.
For the number of people who take part in the the organized sports every year, different surveys are carried out and a lot of effort is put into it. Therefore, the source must be mentioned when something is cited.