Final answer:
The Visual Analog Scale (VAS), Oswestry Disability Index (ODI), and Roland-Morris Disability Questionnaire (RMDQ) are tools used for outcome assessment of low back pain.Correct option is 4.
Step-by-step explanation:
The tool used for outcome assessment of low back pain includes multiple options. These options include the Visual Analog Scale (VAS), the Oswestry Disability Index (ODI), and the Roland-Morris Disability Questionnaire (RMDQ). All of these tools are commonly used to assess the severity and impact of low back pain on an individual.