How can you quickly reinstate a deleted footer placeholder in master view? A. Create a new slide master B. Re-apply the footer placeholder C. Re-apply the slide layout D. All of the above

The correct answer is: B. Re-apply the footer placeholder.

To quickly reinstate a deleted footer placeholder in master view, you can simply re-apply the footer placeholder. To do this, follow these steps:

1. In the master view, select the slide master.
2. In the Header and Footer group on the Insert tab, click Footer.
3. In the Footer dialog box, select the Footer placeholder, and then click OK.

The footer placeholder will be reinstated on all slides that use the slide master.

Option A is incorrect because creating a new slide master will not reinstate the footer placeholder on slides that already use the original slide master.

Option C is incorrect because re-applying the slide layout will not reinstate the footer placeholder on slides that already use the original slide layout.

Option D is incorrect because only option B will reinstate the footer placeholder on slides that already use the original slide master.