Answer:
The correct answer is letter "D": short-run; long run.
Step-by-step explanation:
Momentum trading is the type of transaction that takes place in the stock market when a particular stock faces an increase or decrease because of unexpected news in regards to the firm issuing the shares. Those movements can occur rapidly causing potential profits or losses to investors. On the other hand, reversal patterns take an undetermined period of time until they happen -if they do. If the price goes downwards after an uptrend it is called a bearish reversal but, if it moves upwards after a downtrend it is called a bullish reversal.