Which of the Following Is a Measure of the Satisfaction

Multiple Choice

Which of the following is a measure of the satisfaction level of website users?

A) the extent to which a user can accomplish simple tasks on the first visit to the site
B) how quickly and efficiently a user performs tasks after learning the site's basic design
C) the number of mistakes users make when they attempt to accomplish a task and how easily they can recover from those mistakes
D) the ratings of individual experiences on the website by the users