Which action is an example of a consumer making a purchase through a direct marketing arrangement?

Multiple Choice

$$ purchasing software at a big$-$box retailer's special tech department

purchasing a set of towels featured in a department store's lower level

purchasing a book on the history of the United States by sending in an order form attached to a pamphlet sent to the customer by the publisher

$$ purchasing a box of cereal at a local grocery store with a coupon on the box