An allusion is a reference in a text to

a

an encyclopedia, dictionary, or thesaurus.

b

another well-known text, person, event, or thing.

c

a previously mentioned person, event, or thing.

d

the author's personal experiences or thoughts.

c. a previously mentioned person, event, or thing.

Explanation:

An allusion is a brief and indirect reference to a person, place, thing or idea of historical, cultural, literary or political significance. It does not describe in detail the person or thing to which it refers.

a

Explanation:

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E2020