Final answer:
Presentism in history refers to the practice of focusing on short-term causes and interpreting the past through current values, while ignoring long-term causes and the sense of history of people in the past. Therefore the correct answer is ignores long-term causes of a historical event while focusing on the short term.
Step-by-step explanation:
When practicing presentism, a historian wrongly ignores long-term causes of a historical event while focusing on the short term. This means that they do not consider the underlying factors or events that contributed to the event in question. Presentism involves interpreting the past through the lens of current values and problems, which can lead to a skewed understanding of historical events. It is important for historians to recognize that human beings in the past also had a sense of history and to avoid projecting their own perspectives onto the past.