The question uses a rhetorical question as a way of explaining that the signer works as a high school teacher, making Answer D correct.
At this level of test, if you are not able to identify the correct answer, you probably want to explore options for beginning American Sign Language and Deaf Culture classes at a local university or community college. For potential ASL and interpreter education programs in your area, click here.
For information on the teaching of ASL, including potentially resources in your area, you can visit the .
