Which of the following statement is true?
1. The design of a job reflects the organisational, environmental and behavioural demand placed on it.
2. The design of the jobs provides individual employee's full responsibility for groups of a accounts.
3. Poorly designed jobs not only lead to low productivity, but they can also cause employee turnover, absenteeism, complaints, sabotage, unionisation, resignations and other problems.
4. Organisational elements of job design are concerned with efficiency.