Different quality factors of software can be reflected upon user’s different points of view, through product running, product modification and product transformation. Of the following properties, which one is connected with product runningⅠ. correctnessⅡ. robustnessⅢ. re-use

A．Ⅰ only

B．Ⅱ only

C．Ⅰ and Ⅱ

D．all of above