1. Text messaging - you don't have to respond right away.
2. Wireless calling - you can make and receive calls from wherever you are and it is easier to contact people and to stay safe because you can let people know where you are
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explanation = hope this answer will help you
B: Informal style.
You can see this as the narrator says “the lead actor - I totally forgot his name - was crazy good.”
It's a yin-yang sort of thing. The black, while seeming thoroughly dark, gleams white which implies that there is good in the bad, light in the dark, etc.