Which of the Following Statements Is the Best Description of the Conclusion

Which of the following statements is the best description of the conclusion drawn from research on only children?

A) Only children tend to be selfish and overly dependent on other people.
B) The lack of siblings is associated with a lack of communication and social skills.
C) Only children show high achievement, good adjustment, and positive social skills.
D) Only children tend to be rebellious and nonconformists.