单选题You include the calendar class in your Hotel Booking application. Which additional form level objects will you need to create to implement this reusable component fully?（）ABlocks BVisual attributes. CStacked canvas. DNothing further needs to be created.
单选题
You include the calendar class in your Hotel Booking application. Which additional form level objects will you need to create to implement this reusable component fully?（）
A
Blocks
B
Visual attributes.
C
Stacked canvas.
D
Nothing further needs to be created.
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