In a chart, each data point-bar, slice and so on-has a unique: A. axis B. color or pattern C. height

## Step 1<br />In a chart, each data point, whether it's a bar in a bar chart or a slice in a pie chart, has a unique characteristic that distinguishes it from others. This characteristic is not the axis, as the axis is a common feature for all data points in a chart.<br />## Step 2<br />The height of a bar in a bar chart or the size of a slice in a pie chart can vary depending on the data it represents. Therefore, the height is not a unique characteristic for each data point.<br />## Step 3<br />The color or pattern of a data point is unique to it. This is because different colors or patterns are used to represent different data points, making them easily distinguishable.