Raul has a retail webiste. He wants to increase his earnings from the site. He knows theer are alot of key performance indicators (KPI) that give him information, but which ones should be focus on to best help him increase revenue? 1. Sessions 2. Pages per session 3. Avarage engagment time 4. Conversion rate 5. Revenue per purchase 6. Average rime on site 7. New account sign-ups 8. Revenue per session A. 1,3,6,7 and 8 B.3,4,7 and 8 C. 1,4,5,6, and 8 D. 1,4,5 and 8