A Foreign Service Officer (FSO) Attempting to Help a Foreign

A Foreign Service Officer (FSO) attempting to help a foreign citizen is struggling with a language barrier. The most effective way the FSO might facilitate communication is to

A) pantomime the problem and related questions
B) speak very loudly, breaking words into distinct syllables
C) express frustration with the situation
D) break the conversation down into small bits, using short sentences and simple questions