Please help. Being timed

For your research paper on the history of maui, you locate a source covering the overall history of the hawaiian islands. as you evaluate the source, however, you decide not to use it in your research because it never mentions maui. this significant omission of information falls under what criterion for evaluating resources?

Enforces the laws. a.legislativeb. executivec. judicial

What are the major problems with a command economy?