Correct Answer: Food and water

Solution : The correct answer is (d) Food and water.

Physiological needs are the basic survival needs that must be met in order for an individual to maintain their physical well-being. These needs include essential requirements such as food, water, shelter, air, sleep, and other biological necessities. Without fulfilling these basic physiological needs, individuals would struggle to survive and meet higher-level needs.

In summary, while self-esteem, friendship, and safety are important needs, food and water specifically fall under the category of physiological needs according to Maslow's hierarchy.