Why do myths and legends evolve over time? When reading a story people tried to add or omit portions

They change in popularity because no one tells them anymore

The stories are usually read from books so they stay the exact same

Every decade the stories change to become modern and current​

Explanation:

I think:

Every decade the stories change to become modern and current​

D. Every decade the stories change to become modern and current​

Explanation:

faithful servants eumaeus and philaetius:

his ragged vest then drawn aside disclosed the sign conspicuous, and the scar exposed: eager they view'd, with joy they stood amazed with tearful eyes o'er all their master gazed:

these servants know ulysses by the scar he got when he was a child - so when he showed them the mark, they immediately knew this is truly their master and they hugged him, finally starting to believe his words.