Please Explain

If one wanted to know if two characteristics were redundant one would calculate. The correlation between their quintile returns over time. The information ratio for one and compare it to the other. The batting average of one, but not the other. none of the answers listed here. If one wanted to know if two characteristics were redundant one would calculate. The correlation between their quintile returns over time. The information ratio for one and compare it to the other. The batting average of one, but not the other. none of the answers listed here