Color Contrast AA, and AAA

Please read this statement below:
 
Instructions: Select the situation below that matches your content. Each situation includes techniques or combinations of techniques that are known and documented to be sufficient for that situation. 
Situation A: text is less than 18 point if not bold and less than 14 point if bold


G17: Ensuring that a contrast ratio of at least 7:1 exists between text (and images of text) and background behind the text 

G148: Not specifying background color, not specifying text color, and not using technology features that change those defaults 

G174: Providing a control with a sufficient contrast ratio that allows users to switch to a presentation that uses sufficient contrast
Situation B: text is as least 18 point if not bold and at least 14 point if bold


G18: Ensuring that a contrast ratio of at least 4.5:1 exists between text (and images of text) and background behind the text 

G148: Not specifying background color, not specifying text color, and not using technology features that change those defaults 

G174: Providing a control with a sufficient contrast ratio that allows users to switch to a presentation that uses sufficient contrast
 
My question is this: Does Color Contrast for AA, and AAA mean that I need to meet #1, #2 "AND" #3 must be met once I identified the font type, or does it mean, that "ANY" of the three techniques are sufficient to pass Color Contrast, meaning (I could pass #1, fail #2, fail # 3), but WCAG would still pass me for Color Contrast,
My question is this:
 
I am trying to meet criteria 1.4.3, and 1.4.6. So far, I met G17, and G18. However, I fail G148. G174 I am not using.
 
Since I pass G17 AND G18, but fail G148 and G174, do I pass or fail AA & AAA.