The title of Maya Angelou's autobiography I Know Why the Caged Bird Sings comes from a poem called "Sympathy" by Paul Laurence Dunbar, another African-American writer. Angelou references this poem, another literary work. When authors reference another literary work, it is called a(n)...
O personification
simile
foreshadowing
allusion
O analogy

Allusion

Explanation:

An allusion is a covert or indirect reference to something else. One author referencing another literary work like in the given case is an example of an allusion.

Personification is the attribution of human characteristics to something non-human.

A smile is a literary device used to compare two things. Unlike the metaphor, a simile uses words like and as.

Foreshadowing is a literary device in which the author gives the readers hints about what is going to take place later on in the story.

An analogy is a comparison of two different things based on the resemblance of one of their aspects.

theres no poem include that

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).