An expression whose meaning is different from the individual words that make it up is called a(n)

idiom.
oxymoron.
portmanteau.
pun.

A. Idiom

Hope this helped 

2: "jesse kept on, his voice rising in anger."

4: "andy stormed out angrily."

i answered the question and it said these two were right : )

i hope this

the answer to the given question above would the one that wiesel is establishing and how is ethos by appeal to his authority in having survived the holocaust. hope this answers your question.

have a great day ahead!