Given the Partial LinkedList Class Declaration Below, Select an Expression

question 61

Multiple Choice

Given the partial LinkedList class declaration below, select an expression to complete the empty method, which is designed to return true if the list contains no elements.

• A)first != null
• B)first == null
• C)first.data == null
• D)first.next == null

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Definitions:

Old Age

A life stage characterized by advanced years, often accompanied by health decline and increased experience.

Aging

The process of becoming older, which is characterized by the gradual decline in physical and sometimes mental capacity, and the accumulation of life experiences.

Health-maintenance Approach

A strategy focusing on the prevention of illness and the maintenance of health through lifestyle practices and healthcare interventions.

Aging

The process of becoming older, a natural and inevitable phenomenon that involves several biological, psychological, and social changes.