The correct answer is option 'B', Abraham Maslow.

Explanation:
Abraham Maslow developed the motivation theory that classifies needs in hierarchical order. This theory is known as Maslow's Hierarchy of Needs.

Maslow's Hierarchy of Needs is a psychological theory that explains human motivation and behavior. According to Maslow, individuals have a set of needs that motivate their actions, and these needs are arranged in a hierarchical order. The hierarchy consists of five levels, with each level representing a different category of needs.

1. Physiological Needs:
The first and most fundamental level of Maslow's hierarchy is physiological needs. These are the basic needs required for survival, such as food, water, shelter, and sleep. These needs must be fulfilled before an individual can move on to the higher levels of the hierarchy.

2. Safety Needs:
Once physiological needs are met, individuals seek safety and security. This includes physical safety, protection from harm, financial security, and stability. Safety needs include having a stable job, a safe environment, and access to healthcare.

3. Love and Belongingness Needs:
After physiological and safety needs are satisfied, individuals seek love and belongingness. This involves the need for social interaction, love, affection, and a sense of belonging. People desire to have meaningful relationships, be part of a family or community, and feel accepted by others.

4. Esteem Needs:
Once the lower-level needs are fulfilled, individuals strive for esteem needs. These needs include self-esteem, respect from others, recognition, and achievement. Esteem needs can be satisfied through personal accomplishments, gaining recognition, and earning the respect of others.

5. Self-Actualization Needs:
The highest level in Maslow's hierarchy is self-actualization. This is the need for personal growth, self-fulfillment, and reaching one's full potential. Self-actualization involves pursuing meaningful goals, personal development, and realizing one's unique capabilities.

According to Maslow, individuals progress through these levels in a sequential manner. The lower-level needs must be satisfied before the higher-level needs become motivating factors. Once a need is fulfilled, it no longer serves as a motivator, and individuals move on to the next level.

In conclusion, Abraham Maslow developed the motivation theory known as Maslow's Hierarchy of Needs, which classifies needs in a hierarchical order. This theory provides insights into human motivation and helps understand the different levels of needs that individuals strive to fulfill.