एक नई भाषा सीखने से निम्नलिखित में से किस संज्ञानात्मक क्षमता में सुधार होना वैज्ञानिक रूप से सिद्ध है?

Arrange the following human needs from lowest (base) to highest (top) level according to Maslow's Hierarchy of Needs: 1. Physiological needs2. Safety needs3. Love and belongingness needs4. Esteem needs5. Self-actualization needs

In the context of personality development, how does a person's 'will' typically interact with their 'character'?