Where are the Blog Post Options in the API?

I'm trying to update the Collect Trackbacks, Disable Comments, and Comment Moderation valued under "Post Options."  I've got several dozen blogs, so this would take forever by hand and I'd still have no assurances that it would be completed for all of them.  I decided to look at the API.  (Below are how the settings appear in the Web UI).

My guess was that this was stored in the "Extended Attributes" on the blog, but it doesn't appear that it's there.

I'm using this call to get the information about the Blog in question.

And I've looked at returns from an API call under extended attributes (where I guessed it existed), but nothing is showing except:

{@{Key=BlockSpamFeedbackNotifications; Value=False}}

Am I looking in the totally wrong space?  I have zero ego, so if I'm wrong, please feel free to tell me.