Independent variables is characteristic changed to produce different condition. Choose the example of Independent variables i. Gender ii. Interface style iii. Task completion time iv. Background noise Research can tell you about what, how, many and why in rich, multivariate detail. Identify the evaluation technique that is useful to evaluate early design such as prototype and storyboard

• A.
• B. i, ii and iv
• C. i, iii and iv
• D. ii, iii and iv