Final answer:
Atticus worries about Scout and Jem having to face and internalize harmful comments about him due to the impending trial. The correct option is (B).
Step-by-step explanation:
Atticus Finch is concerned that as the trial approaches, his children, Scout and Jem, will be exposed to and must process many disparaging remarks about him.
He recognizes that Jem has the capability to maintain his composure, yet he is worried about Scout's more impulsive reactions, especially because her pride might compel her to retaliate physically if provoked.
Therefore, the answer to what Atticus worries about regarding Scout and Jem as the trial approaches is B) That they might absorb hurtful comments about their father.