A line that indicates a specific value on a chart is called*Drop LineReference LineTrend LineNane of above

The correct answer to your question is Reference Line.

Explanation:

1. Drop Line: This is not a standard term for a specific value on a chart; rather, drop lines typically refer to vertical or horizontal lines that connect a data point to the axis, indicating the value.
2. Trend Line: This is used to indicate the overall direction or pattern of data over time but does not denote a specific value on its own.
3. Reference Line: This is specifically a line drawn on a chart to indicate constant values, thresholds, or benchmarks that can be used for comparison against other data points.

In summary, while the other options describe different types of lines that can be used in data visualization, the term that specifically refers to a line indicating a specific value is "Reference Line."