Task: Question Answering
Input (English): Problem: on rainy mornings , mo drinks exactly n cups of hot chocolate ( assume that n is an integer ) . on mornings that are not rainy , mo drinks exactly 4 cups of tea . last week mo drank a total of 42 cups of tea and hot chocolate together . if during that week mo drank 14 more tea cups than hot chocolate cups , then how many rainy days were there last week ? 
Options: a ) 0 , b ) 4 , c ) 5 , d ) 6 , e ) 7
Output (English): a