If ${z_1}, {z_2} \in \mathbb{C}$,then which of the following is true?
- A$|{z_1} + {z_2}| \ge |{z_1}| + |{z_2}|$
- B$|{z_1} - {z_2}| \ge |{z_1}| + |{z_2}|$
- C$|{z_1} - {z_2}| \le ||{z_1}| - |{z_2}||$
- D$|{z_1} + {z_2}| \ge ||{z_1}| - |{z_2}||$
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