Task: Question Answering
Input (English): Problem: a confectioner decides to sell all of his pastry due to the coming holiday . his pastry goods are equally divided among a group of 15 regular customers . if only 49 customers come to the bakery , each one will receive 6 less pastry goods . how much pastry does the confectioner needs to sell ? 
Options: a ) 450 . , b ) 459 . , c ) 432 . , d ) 502 . , e ) 522 .
Output (English): a