Final Answer:
The impact of this tendency 1) It leads to a narrow focus on one issue and neglect of other important factors.
Step-by-step explanation:
The impact of the human tendency to put too much weight on a single factor, such as guns during an election, is that it leads to a narrow focus on that particular issue while neglecting other important factors (Option 1). This phenomenon can result in a lack of comprehensive understanding of a candidate's stance on various issues, as attention becomes disproportionately concentrated on a single topic.
When voters overly prioritize one issue, it can overshadow other critical matters, such as climate control, gas prices, or other policy areas that have a significant impact on the overall well-being of the nation. This narrow focus may contribute to a less informed electorate, potentially affecting the overall decision-making process during an election.
In summary, the impact of this tendency is a restricted and imbalanced consideration of issues, leading to a neglect of other important factors in the decision-making process.