In Communication terms, what does a "symbol" refer to$?$Group of answer choicesSymptoms $($like having a fever can be a symbol of a disease$)$Letters or images that communicate meaning, $($Correct answer$)$Letters or images that communicate meaningNonverbal expressionsBehaviors $($like hugging can be a symbol of love$),($Incorrect answer$)$Behaviors $($like hugging can be a symbol of love$)$