Which type of needs must be met for survival, such as needing food and water?

The correct answer highlights the basic requirements essential for human survival. Physiological needs encompass fundamental biological requirements, which include essentials like food, water, warmth, and rest. These are considered the most basic tier in Maslow's hierarchy of needs, signifying that without these needs being met, individuals cannot function optimally or sustain life. Hence, fulfilling these needs is the starting point before higher-level psychological or social needs can be addressed.

In contrast, psychological needs revolve around mental and emotional well-being, social needs pertain to relationships and belongingness, and safety needs include security and protection from harm. These categories, while important, do not directly satisfy the immediate biological necessities that are crucial for survival, making physiological needs distinctly vital in maintaining life.