Which of the Following Describes a Direct Relationship Between Independent

Multiple Choice

Which of the following describes a direct relationship between independent and dependent variables after controlling for a third variable?

A) The bivariate relationship changes across the partial tables.
B) One partial table is the same as the bivariate table, the other(s) are very different.
C) The bivariate relationship is the same across the partial tables.
D) The partial tables have many empty cells.