(D) Large trading range of 100 handles since mid October.

Recently the trading range has narrowed between (700,750) with some resistance from 750 (or P pivot). Since then EMA50 has been nearly flat slope; hence sideways. Also, the difference of EMA50 and EMA200 has been decreasing with EMA50's slope marginally bearish.

If bearish momentum continues, a support retest of 700 is in range. Should 700 fail and OBV fails to hold it's EMA50(OBV), then 680 and 650 are not far below. Obey your rules.