Given the Node Class (Partially Shown Below), Select an Expression

question 1

Multiple Choice

Given the Node class (partially shown below) , select an expression to complete the isLeaf method, which is designed to return true if the node is a leaf, false otherwise.

• A)children.size() == 0
• B)children.get(0) == null
• C)data == null
• D)root == null

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Definitions:

Wholesale Rates

Prices charged for goods in large quantities, typically lower than retail prices and offered to retailers or other businesses rather than individual consumers.

Price Taker

A market participant that accepts the prevailing market prices as they do not have enough market power to influence prices.

Close Substitutes

Products or services that can easily replace each other in the eyes of the consumer due to their similar features or functions.

Total Revenue

The total income received by a firm from its sales of goods or services, calculated by multiplying the price per unit by the number of units sold.