In each of the given questions, three sentences are given with a phrase/idiom highlighted in bold. You have to select the answer choice that states the combination of statements in which the idiom has been correctly used.

I. Walter failed his examination but his dad came and said just one thing, “Son, Don’t cry over spilt water.”

II.Janet's been in the clouds ever since she and Jim started going out.

III. Meredith sat at her desk in a brown study, carefully planning how to word her thesis proposal.