Line graph/chart - straight or smooth curves? - User Experience

I'm working on dashboard and researching different kind of graphs that could be used. I couldn't find any information about usability/UX differences between line charts that are using straight (A)

What Is a Line Graph and How To Make Online

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Line chart options, Looker

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Line Graph: Definition, Types, Parts, Uses, and Examples

Drawing Smooth Curved Links in Diagrams and Networks

Line Graph: Definition, Types, Parts, Uses, and Examples

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Line chart options, Looker