Paralegal

Answer: B - Lonnie Lawyer was still preparing for the hearing, and the judge entered the courtroom. Answer B is correct because is correctly uses a comma and “and” to join two complete sentences. Answer A is not the correct choice because it incorrectly uses “while” as a coordinate conjunction. (The sentence would be correct if the comma was removed.) Answer C is not the correct choice because “but” is a coordinate conjunction and a comma is required before “but.” Answer D is not the correct choice because “and” is a coordinate conjunction and a comma is required before “and.”