@Wisam Adil, nope. the pattern is not complete until the D-point is installed. The C-point is considered installed only after the B-point is broken. If the B-point is not broken, the C-point may change or disappear at all (e.g. when the A-point is broken - the whole pattern is invalidated). I'd rather say that it disappears more often than stays. Doing eye backtest you can only see the patterns that DIDN"T disappear. In other words, you can see only winners in history, because you have some reaction from the C-point to consider it installed. I do my market research using visual tester or simulator that draws historical bars as if they appear real-time. This way I see the patterns appear-develop-disappear. Based on this research, more often than not price will never go to the D-point. All my tests of C to D trading show negative expectancy.
@yazkhalid, The probability is based on historical performance of this setup on this pair and this timeframe. Out of hundreds of similar setups that I found during my historical market reasearch and real-time trading the majority of them reaches the green line before the red line.