Final answer:
The correlation matrix provided does not show a strong correlation between any pairs of variables.
Step-by-step explanation:
The correlation matrix shows the strength of the linear relationship between different pairs of variables. To determine the pair of variables with the strongest correlation, we look for the highest absolute value in the correlation coefficients. Since the correlation coefficient ranges from -1 to +1, the pair with the highest absolute value would indicate the strongest correlation. In this case, we would look for the highest absolute value between the variables.
Based on the information provided, we cannot determine the specific values of the correlation coefficients for each pair of variables. Therefore, without the values of the correlation coefficients, we cannot determine which pair of variables shows the strongest correlation. The correct answer is D) None of the pairs show a strong correlation.