A Ready Lightbox ad can contain:

A Ready Lightbox ad can contain:

  • a video and images
  • adult-oriented content
  • a 3-D game
  • just text with no image

The correct Answer is:

  • a video and images

Explanation: Ready Lightbox ads are responsive ads available from a template in AdWords. Ready lightbox templates use existing brand assets — including videos, images, product feeds, and maps — to create rich brand experiences.

Read more here: https://support.google.com/adwordspolicy/answer/6135143?hl=en