Task: Question Answering
Input (English): Sediments are generally classified by particle size. A student would like to classify sediments by their source. Which statement best describes this alternate classification?  
 (A) acceptable if the sediments are also identified by particle size (B) acceptable if the factors used for the classification are given (C) unacceptable because others would not understand the classification system (D) unacceptable because this is not the way scientists usually classify sediments
Output (English): B