I believe it is C. Try and think about where you would naturally pause, you wouldn't say "Tourists in Mexico *pause* enjoy eating the rich, delicious food."
Answer:
Joe and Harris were talking <em>about</em> their football match.
A suspicious character might:
- look around suspiciously
- look at the time a lot/or phone
- disappear into a corner/something
- look suspicious
- walk around glaring
those are some ideas, i hope they help :)
Your answer would be "your energetic dog".
Because the object must have a noun.
