In the Five Factors of usability, You Can Ask ________

In the five factors of usability, you can ask ________ to learn about ________.

A) "How long does it take to learn the product's operation?"; Satisfaction
B) "How often do users make errors?"; Memorability
C) "How fast can an experiences user complete the necessary steps?"; Efficiency of use
D) "Does the user like operating the product?"; Ease of learning