Final answer:
The correct word to fill in the blank is 'engulfed,' as it means being completely surrounded or covered, fitting the context of the sentence where one candlestick completely encases the other.
Step-by-step explanation:
The phrase needed to complete the sentence, 'The color of the bodies is not important. What's important is that the smaller one is totally ___________ by the second candlestick,' should accurately convey the sense that the smaller body is completely covered or enclosed by the second candlestick. Based on this context, the most appropriate word to fill in the blank is 'engulfed.' When something is engulfed, it is swallowed up or surrounded entirely, which fits the scenario where one candlestick covers the other. Options A) Overpowered and B) Dominated might suggest a form of control or influence rather than covering, while C) Ignored does not fit contextually as it doesn't involve any physical overshadowing.