Given the Node Class Discussed in Section 17

question 28

Multiple Choice

Given the Node class discussed in section 17.1 (partially shown below) , select a statement to complete the recursive method descendants, which is designed to return the number of descendants of a node. class Node
{
Public Object data;
Public List<Node> children;
) . .
Public int descendants()
{
Int num = 0;
For (Node child : children)
{
_____________________________
}
Return num;
}
}

• A) num = child.descendants();
• B) num = num + child.descendants();
• C) num = num + child.children.size();
• D) num = num + child.descendants() + 1;

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Definitions:

Spina Bifida

A birth defect where there is incomplete closing of the backbone and membranes around the spinal cord, leading to varying degrees of disability.

Sickle Cell Anemia

A genetic blood disorder characterized by red blood cells that assume a sickle shape, leading to various complications.

Nausea

A sensation of unease and discomfort in the stomach, often preceding vomiting.

Vomiting

The forceful expulsion of the contents of one's stomach through the mouth.