Three major events happen in one day: a Republican politician makes a statement about immigration, a Democratic politician makes a statement about immigration, and a protest group makes a statement about immigration. The producers of the KRSTZ radio program choose to cover only one of these stories. What kind of bias do they show?

inevitable bias
bias by omission and bias by arrangement
bias by omission
unintentional bias
It depends completely on what the events were, so there is not enough information to tell.