Question: Select the true statements about invoking a widget's callback manually. (Choose two.) The callback can be invoked via the invoke() method. The callback is always

Select the true statements about invoking a widget's callback manually. (Choose two.) The callback can be invoked via the invoke() method. The callback is always possible, either directly or indirectly. The callback cannot be invoked directly. The callback is never possible, neither directly nor indirectly

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