The Graduate Management Admission Test (GMAT) has four sections: analytical writing, integrated reasoning, quantitative and verbal sections. Suppose that a researcher collected GMAT score data and calculated the covariance matrix across sections. Analytical Writing Integrated Reasoning Quantitative Verbal Analytical Writing 0.81 Integrated Reasoning 0.216 1.44 Quantitative 2.16 2.4 16 Verbal 0.27 1.44 3.6 9 Find the pair of two sections that have the largest correlation coefficient