In each of the following questions, three sentences are given with an bold phrase or words. Choose the single phrasal verb from the options that can grammatically and contextually replace all of the bold phrases or words across all three sentences without changing their core logical meaning. If the sentences are correct as they stand, choose "No improvement required". 1.      The legal team advised the corporation to yield to the stringent demands of the federal regulatory agency to avoid an expensive court trial. 2.      ​After hours of intense, exhausting labour in the sweltering heat, the old machinery finally began to collapse under the structural friction. 3.      ​The diplomatic envoy made it clear that their nation would never capitulate to foreign economic coercion under any circumstances.