What is an example of a remarketing exclusion along with remarketing targeting?

Q: What is an example of a remarketing exclusion along with remarketing targeting?

A) Retail advertisers: Bid boost my ad to users who have (+) been to the site in last 30 days but (-) not in the last 7 days
B) Banking advertisers: Show my ad to users who have (-) not logged in as a current customer
C) Travel advertisers: Bid boost my ad to users who (+) added a flight to their cart but have (-) not yet purchased it
D) None of the above

E) All of the above

Correct Answer is E) All of the above.