Reporting Scores Questions

<p>Does the common app require you to report all scores if you have them?
I have a bad SAT II World History Score, and if the common app has three slots (theoretically, not familiar with format), but the school I'd like to apply to only requires two scores, and I have two good scores in other subject tests (hopefully, taking in June), do I have to report the World History score?
Also, if I have a bad SAT I Score, but a good ACT score, must I report the SAT score? Will colleges take it to consideration if it's on my score report when I send them my SAT II subject tests, but not reported on the application? Is it dishonest not to report?</p>

<p>Follow up Question:
If I decide to use only the ACT to fulfill the test score submission requirements, but the school already has been sent my SAT I & II scores, do they take those into consideration?</p>