The promotion mix consists of (1) advertising, (2) sales promotion, (3) publicity, and (4) personal selling. Indicate which component of the promotion mix is being illustrated by the following activities.

a. An announcement in the local activities section of the newspaper informing the public that the local aircraft model builders club will meet next Tuesday evening.

b. Seacoast Airlines, a local commuter, offered children between 10 and 16 years of age airline tickets in exchange for five proofs-of-purchase seals from Kellogg cereals.