Respuesta :

A single rescuer will best maintain a seal by placing the thumbs and index fingers of each hand forms a "C" to seal the mask against the face.

Who is a Rescuer?

This refers to an individual who is involved in first aid treatment in emergency situations.

The individual will best maintain a seal by placing the thumbs and index fingers of each hand forms a "C" to seal the mask against the face during cardio-pulmonary resuscitations.

Read more about Rescuer here https://brainly.com/question/3563444