Most appropriate choices here will be Suffering, have as
suffering indicates that both the United States and the European Union are experiencing negative effects as inflation rate is high
have is the correct verb form which will be used in plural subject
So, the sentence will be The United States and European Union are suffering from high inflation and the world's two biggest central banks have instituted tighter monetary policy and hiked policy rates.
The correct option is (C): Suffering, have
Each question has a sentence that has an underlined part. Choose the option which rephrases the underlined part in the most appropriate manner in terms of grammar and usage.
In an attempt to boost their profits, many edible oil-producing companies have been engaging themselves in propaganda against commonly used oils and promoting exotic and expensive varieties of oils \(\underline{as\ more\ healthier\ options.} \)