意志行为指的是（    ）

由国家强制力保证实施是法律的最主要特征。下列选项中最能够体现这一观点的是（    ）                                                                                                

A: What did you buy in the Computer World yesterday?
B: ____  I want to use it to record.
A: ____ 
B: Well, I haven't known yet.____  
A: Oh, no! You should read the instructions first.
B: If you want to turn on the recorder, press the blue button”.
A: Look! It works. How do you save your video?
B: ____ 
A: You've done that! Let’s try something to record.