Read the excerpt from hemingway’s a farewell to arms.

“it could not be worse,” passini said respectfully. “there is nothing worse than war.”
“defeat is worse.”
“i do not believe it,” passini said still respectfully. “what is defeat? you go home.”
“they come after you. they take your home. they take your sisters.”

the use of informal diction in a farewell to arms
robs the passage of having a deeper meaning.
to maintain the realism of the dialogue.
lends an air of absurdity to the dialogue.
reduces the readability of the passage.

The use of informal diction in 'A Farewell to Arms' helps to maintain the realism of the dialogue.

Option B.

Explanation:

‘A Farewell to Arms’ is a novel authored by the renowned Earnest Hemingway. The novel depicts the tragedy of war, apart from this it also illustrates love, fear, and courage.

From the given excerpt we can see that Hemingway have made use of informal dictation, this is mainly done so that the realism of the conversation is maintained. Informal dictation makes readers more engaged than the formal ones. Here informal dictation makes readers aware about the harsh reality of war and letting then known that nothing is worse than war.

this labor, by slow prudence to make mild.   c. ability to govern well