Which of the Following Statements Is a Limitation of Latin

Multiple Choice

Which of the following statements is a limitation of Latin square designs?

A) They require an equal number of rows,columns,and treatment levels,which is sometimes problematic.
B) They do not allow the researcher to examine interactions of the external variables with each other or with the independent variable.
C) The researcher can control for only one external variable.
D) Both A and B are correct.