Which statements are true concerning the effect of the >> and >>> operators?（）

A. For non-negative values of the left operand， the >> and >>> operators will have the same effect.
B. The result of （-1 >> 1） is 0.
C. The result of （-1 >>> 1） is -1.
D. The value returned by >>> will never be negative as long as the value of the right operand is equal to or greater than 1.
E. When using the >> operator， the leftmost bit of the bit representation of the resulting value will always be the same bit value as the leftmost bit of the bit representation of the left operand.