The nurse knows that which of the following interventions are appropriate steps in the administration of ear drops to a child under three years of age?

Pulling the child's ear upward and backward to straighten the ear canal

Touch the dropper to the ear canal to steady it for accurate drop administration.

Warm the ear drops by holding the bottle in the hand for 1-2 minutes before administration

Have the child lay on the affected side for 1-5 minutes after instillation