In the question below, a sentence is given which has a blank, meaning something has been omitted. From the options below, choose the correct combination of phrases that can fit in the blank to make the sentence grammatically and meaningfully correct. During the final phase of the climate negotiations, several participating economies agreed to postpone binding commitments and instead ______ until a more comprehensive verification framework became operational. 1. called off immediate compliance measures 2. held back from adopting mandatory targets 3. put up with environmental obligations