If an advertiser adds interest categories and topics to the same targeting group, then a TrueView ad will show:

Q) If an advertiser adds interest categories and topics to the same targeting group, then a TrueView ad will show:
  A)  only on targeted topics.
  B)  only on targeted interest categories.
  C)  on targeted topics and interest categories.
  D)  only when targeted topics and interest categories match.