Grey cats are said -to Europe from Syria during the Crusades , and by the 18th century,, one of these cats called 'Charteux'- well -established. A) having been brought / would become B) to have brought / was to become C) to be brought / has become D) being brought / became E) to have been brought /had become

E) to have been brought / had become<br /><br />The correct answer is E) to have been brought / had become. The sentence is discussing the historical event of grey cats being brought to Europe from Syria during the Crusades. The phrase 'to have been brought' indicates that the action of bringing the cats to Europe occurred in the past, and the phrase 'had become' indicates that by the 18th century, one of these cats, called 'Charteux,' had already become well-established.