Daniel wants to redesign the user interface. The customer service agents use to enter explicit statement to invoke operations within the system and cannot always remember the commands a. Narrative overview
b. Command language interaction
c. Database design
d. Time to learn

b. Command language interaction

Explanation:

Daniel wants to redesign the user interface. The customer service agents use Command language interaction to enter explicit statement to invoke operations within the system and cannot always remember the commands.

the correct answer is "part of speech" if the portion used is "verb, noun" there is another question similar to this with the same question but different portion. the other portion is "hand write" and the correct component for that question is "antonym".

hope this . : )