C. Index loops can iterate only over numeric values.
A2:
D. Because the counter i is incremented and then displayed, the first value displayed is 2. The number 4 is shown because the loop does not terminate immediately when the condition is false; rather, it finishes the loop.
A3:
A. The variable specified in the item attribute takes on the keys of the structure in the loop.
A4:
B and D. The conditional loop has only one attribute, condition, and the collection loop uses item.
