Salesforce Admin is creating a dashboard that measures where the current closed opportunities amounts fall within the range of values. He wants to setup Minimum Value, Breakpoint #1 Value, Breakpoint #2 Value, and Maximum Value. The ranges that he set can indicate poor, acceptable, and good performance. Which component type will allow the Salesforce Admin to achieve this?

Answer options:

A.Chart
B.Gauge
C.Metric
D.Table

Correct Answer: B 
Use a gauge when you have a single value that you want to show within a range of custom values. Use gauge charts to track progress along with a single measure, such as how much revenue has been realized versus the target. 
Option A is incorrect because through a chart you can show data in reports and dashboards in the form of bars, columns, lines, shapes or other elements.
Option C is incorrect because a metric component displays a single value in a dashboard; just the value and its title.
Option D is incorrect because you can show report data in tables to help readers scan for data easily, try hiding details and ranges, limiting the number of results shown, and highlighting with color. You can also show your table in a dashboard component. 
Reference:

https://help.salesforce.com/articleView?id=dashboards_component_types.htm&type=5