A restaurant supply company captures email subscribers and leads through trade shows. They hold a giveaway at each trade show to entice booth visitors to leave their contact information. In the past, they have used a fishbowl to capture business cards, but need to update this to an online sweepstakes entry vehicle displayed on a mounted tablet. Individuals should only be allowed to enter once, and the winner will be selected randomly. All entrants receive a follow-up email after the trade show asking them to confirm their opt-in for a monthly newsletter. Which two components are appropriate for this solution? (Choose two.)