What is the answer to the riddle 'why did the cow only give buttermilk'?

The attitude the speaker in this poem holds toward himself can best be described as

What does robert frost accomplish by using blank verse in his poems he mimics the sound of natural speech. he establishes a sense of formality. he establishes order through rhyme. he makes his poems original by breaking the rules.

Within a farewell to arms, what would be the best definition of the word “regiments”?