Hi, the correct answer is - est. The conjugation of the verb "etre" goes as follows: 1. je suis 1. nous sommes
2. tu es 2. vous etes
3. il/elle est 3. ils/elles sont
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Long-term health effects drom air pollution include heart disease, lung cancer, and repiratory diseasees such as emphyseema.
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The role of socioeconomic status in determining access to healthcare results in heath inequality between the upper, middle, and lower or working classes, with the higher classes having more positive health outcomes.
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It is the third one I think
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