Killer bees are very different, though, and they are a threat
to every person, not just the ones allergic to bee stings and
afraid of bees and all that stuff, which of course are real
worries, but that's not my point today. The bees the popular
media calls killer bees are actually Africanized honeybees.

Which phrase in this passage from "The Killers in Our Midst" is the most
casual?

A. Killer bees are very different

B. a threat to every person

C. The bees the popular media calls killer bees

D. and afraid of bees and all that stuff​