Answer: A. Extraordinarily important.
Explanation: Based on the information presented in the excerpt, we can infer that the information in the wireless message was extraordinarily important, because all the signs the characters give each other without even saying a word, like that the twitching of "Blinker's" eyes became more pronounced as he was reading the message and also the seriousness of de Grey while he delivered the message.
Because
This is the answer because cause and effect words are (because, if, therefore, since, then)
By don’t putting lighting into the green monster do it can come alive
