Emily is speaking in front of a group of engineers and computer programmers about some new software she has developed. She notices many of them are scratching their heads, staring at her with confused looks on their faces, or looking around at others in the room. Which of the following should she try in order to better engage her audience?
a. consider the audience’s diversity more carefully by asking a few "what if" questions
b. acknowledge they may disagree with some of her arguments, and invite them to consider it from a different point of view
c. speak more loudly, tell a funny story, and move around a bit more
d. repeat what she said in different words, and give a few more examples

Read the excerpt from "object lesson, part 2." "no sign of the original envelope? " "no." "i found two boys with bills — in each case a single, too. david strager and joey buell. no envelope." louise's brows met. ellery glanced up at the clock. 9: 07. he strolled over to her. "don't show them you're worried. there's nothing to worry about. we have twenty-eight minutes." he raised his voice, smiling. which statement explains the inference ellery makes and why he makes it? he infers that miss carpenter thinks they are not going to find the thief because he sees her facial expression. he infers that it will take twenty-eight more minutes to find the missing money because that is all the time he has. he infers that the original envelope will not be found because neither david strager nor joey buell has it. he infers that david strager and joey buell took the money because they each have a dollar bill.