What Is the Most Accurate Statement, Related to Study Strengths

What is the most accurate statement, related to study strengths?

A) Study strengths always involve a level of complexity-multiple research questions, many variables, and many references.
B) Study strengths are essentially the elements of the study that the researcher completed in accordance with the design of the study.
C) The study's strength is determined by whether the research results are statistically significant or not.
D) Strengths are determined by the number of times the article is cited by other authors.