What class does an adminhtml grid directly extend?
A. Mage_Adminhtml_Block_Widget
B. Varien_Data_Grid
C. Varien_Data_Widget
D. Mage_Adminhtml_Block_Template
What class does an adminhtml grid directly extend?
A. Mage_Adminhtml_Block_Widget
B. Varien_Data_Grid
C. Varien_Data_Widget
D. Mage_Adminhtml_Block_Template