Why did Barthes think it was crucial to unmask or deconstruct the original denotation of a sign?

1. What are the signifier and signified of an engagement ring? Can you think of a
way that this sign has already been
stripped of history?
2.
Why did Barthes think it was crucial to unmask or deconstruct the original
denotation
of a sign?
3.
Identify two or more distinct nonverbal signifiers from different reality TV shows
that have basically the same
signified—“You’re out of here.”
4.
“It’s not over ’til the fat lady sings”: what are the denotative signifier, signified,
and
sign to which this statement originally referred? When spoken about a
baseball game, what
connotative shift has altered the meaning of the original
sign?