##### Q-81. A risk manager would like to analyze and forecast a security performance and has obtained the historical time series for that security. Based on the Partial Autocorrelation Function (PACF) plot, which of the following is the best regression approach for the security? ![Sample Partial Autocorrelation Function Plot](image-placeholder) A. AR(1) B. MA(1) C. AR(2) D. MA(2) | Financial Risk Manager Part 1 Quiz - LeetQuiz