Which Is an Example of the Kind of Diversity You

Which is an example of the kind of diversity you may encounter in your everyday life?

A) a student who,like his twin brother,excels at science but prefers to learn new information in a "hands-on" way
B) a nurse at the hospital who recently has emigrated from the Czech Republic
C) a deaf student in your English class who struggles with the articles "a," "an," and "the" because they are not used in American Sign Language
D) all of the above.