Multiple choice technology platforms and products

The root class of the RadioButton widget in hierarchy of Widgets is

  1. Button

  2. TextView

  3. CompoundView

  4. None of above
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B Correct answer
Explanation

In Android, the hierarchy for RadioButton is View -> TextView -> Button -> CompoundButton -> RadioButton. Among the options, TextView is the ancestor/root widget class from which RadioButton inherits its text-rendering capabilities. Button is a direct parent, and CompoundView does not exist in the standard Android widget library.

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