Why? A. the real number - A ^ 2 is negative. B. the following sign (a ^ 2) = absolute value a The following statement is correct. Why? A. The real number - A ^ 2 is negative B. Follow sign (a ^ 2) = absolute value a C. The absolute value of - a must be positive D. The absolute value of real number - A is a

Why? A. the real number - A ^ 2 is negative. B. the following sign (a ^ 2) = absolute value a The following statement is correct. Why? A. The real number - A ^ 2 is negative B. Follow sign (a ^ 2) = absolute value a C. The absolute value of - a must be positive D. The absolute value of real number - A is a

B correct
A wrong: when a = 0, it is not negative
C error: when a = 0, it is not a positive number
D wrong: a