What does clicking the Undo button in the Drawing Editor do?

When maintaining the airway of a pediatric patient, you should:

A) place padding under her head. B) hyperextend her neck and head. C) use a nasal airway rather than an oral airway. D) place a folded towel under her shoulders.

The EMT is correctly accessing for accessory muscle use when he examines what part of the body?

A) Nares B) Chest C) Back D) Inner mouth