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.

because he is using a description to provide evidence to support his argument.

hope this could

laughter improves people's emotional and well-being.   kavita khajuria is a psychiatrist and he has defined laughter as " physical expression of humour and joy that has numorous protective qualities." when you feel under stress or sad because you have argued with a person you love, you need to laugh to feel strong enough to face the problems.

when you have an exam , you probably feel under stress. laughing will you release this tension. humour decreases the hormones that cause stress. k. khajuria   says that the brain releases some chemical components when we laugh. these chemical components are called neurotrophic factors and they are very important. they support the neurons in the brain and encourage the growth of new neurons. as a conclusion, you should laugh a lot before giving your exam. laughing will you with your exam and with your brain.

if you are having difficult times with friends or family members, laughing will also you face these problems. alannagh kelly is an assistant psychologist. she thinks that laughter can   make anger and anxiety vanish in the air. laughter can set a new and exciting atmosphere among people and it can make the bonds bewteen people stronger. so, if you are having a difficult time with someone you love, invite him / her to watch a comedy. you will probably make peace.

laugher will certainly protect you against stress and emotional pain. watching a comedy   may be a solution to stress or damaged bonds. " this remedy is fun , free, and best of all, no instructions needed."   alannagh kelly has said in her blog.