Task: Question Answering
Input (English): Problem: the volume of a certain substance is always directly proportional to its weight. if 48 cubic inches of the substance weigh 112 ounces, what is the volume, in cubic inches, of 63 ounces of this substance ?
Options: a. 27, b. 36, c. 42, d. 64, e. 147
Output (English): a