Identify the sentences that contain an example of logos.

A, 9 out of 10 professionals rate our site as user-friendly.
B, Should you need assistance, 300 tech-support workers are on hand, so you will never be placed on hold.
C, You're smart enough to know the difference.
D, Do you feel unappreciated by your boss?
E, I personally guarantee the freshness of this bread--it has my name on it.
F, We will continue to live up to our fine reputation.