Correct Option: A

indisputable (Adjective) : that is true and cannot be disagreed with or denied; undeniable
controversial (Adjective) : causing a lot of angry public discussion and disagreement
restrained (Adjective) : showing calm or control rather than emotion ; not too brightly coloured or decorated ; discreet controlled (Adjective) : done or arranged in a very careful way ; limited; managed by law or by rules ; remaining calm and not getting angry or upset
appeasing (Adjective) : tending or intended to pacify by acceding to demands or granting concessions