Answer:
He infers that Miss Carpenter thinks they are not going to find the thief because he sees her facial expression.
Step-by-step explanation:
The correct answer is 'he infers that Miss Carpenter thinks they are not going to find the thief because he sees her facial expression' because he sees how Louise's brows met and then he tells her that they have time to find the missing money with a smile in his face so she doesn't worry. The other options are not correct because he can't really know if they are true.