How Would You Characterize Studies That Examine the Relationship Between

How would you characterize studies that examine the relationship between cyberbullying and emotional and behavioral problems?

A) The research is extensive, and most of it comes to the same conclusions.
B) The research is so recent that it is difficult to draw many conclusions from it.
C) The research has been conducted for many years, but many of the study results are contradictory.
D) So little research has been done on the topic that it is difficult to trust the findings.