The diagram below illustrates a measure used for setting campaign objectives and measuring success. If the total number of visitors is 755 and 32% of the new visitors made a purchase within the month, what measure is assessed AND what would the visitor conversion rate be? O New Visitor Returning Visitor O a Volume measure; 27.15% O b. Acquisition cost measure; 48.2% OC. Volume measure; 2,71% O d. Acquisition cost measure; 28%