Question

Expain the underline portion

Answer 1

• The use of the preposition 'and' in the underlined portion of the sentence is incorrect- Tanner's work was forgotten, but the Smithsonian later revived interest in it. D is the best possible answer here as it removes 'and' and uses 'until', thereby conveying the meaning of the sentence perfectly. Other options do not do this. However, option C uses 'but' which though correct makes the sentence a bit convoluted and not as clear as D.