A JRadioButton is different from a JCheckBox in that .
a. a JRadioButton is a subclass of JToggleButton, JCheckBox is not.
b. normally several JRadioButtons are grouped together and are mutually exclusive.
c. a JRadioButton is a type of button, JCheckBox is not.
d. a JRadioButton is a state button, JCheckBox is not.
B
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