What do the best performing pins have in common? What is a rich pin? What is the half-life of a pin?
A) They have no common characteristics; a pin with many followers; one day
B) They use bright colors and large fonts; a pin with added metadata; one week
C) They are visually appealing and informative; a pin with up-to-date information; one month
D) They are random; a pin with paid promotion; one year
