In case something important or bad happens
<span>The veterinary journal , it is most credible because it is about the specific topic</span>
Answer:
No. C
Explanation:
Because there should be approval of house of representative and president
"It is a separate introductory section of a literary or musical work".
Aka: a before hand explanation of what's coming ahead, whether it tells the ending, or provides extra information that the actual work doesn't.