The put/call ratio is computed as ____ and higher values are considered ____ signals. a. the number of outstanding put options divided by outstanding call options; bullish or bearish b. the number of outstanding put options divided by outstanding call options; bearish c. the number of outstanding call options divided by outstanding put options, bullish d. the number of outstanding call options divided by outstanding put options; bearish e. the number of outstanding put options divided by outstanding call options, bullish