Directions The following question consist of four statements. Some or all the statements may have an error of grammar or syntax. Identify only the statements having an error.

(A) The author's remarkable first book is the story of her meandering journey up the river Indus from its mouth near Karachi to its source in Tibet. (B) There was a time when this subject was much in the air and a number of people were writing about it. (C) Even though Sarah is senior than me not only in service but also in age, it was difficult to find her trustworthy enough. (D) Scientists have made the world a better place to live