The given sentence is divided into two parts: part A and part B. Let's analyze each part to identify any errors in their construction.
Without additional context from the sentence, the given parts A and B lack coherence and completion, especially in reference to timing or conditions. Therefore, part B as given, "how society will emerge," is assessed to be the problematic segment containing the error.
Consequently, the correct identification of the error is in the option "
how society will emerge .
" as it stands incomplete and lacks context.