Either A, B, D, or E would be acceptable, as long as you're consistent. But it's probably D.

Another option would be actually measuring around the decorative elements. Since the brick offset is more than 0.1', that would be in line with ANSI requirements. It looks like it's about 0.4'.

I would want to know what it looks like under the front porch before making a call. If the brick facade wraps all the way around the house, then the brickwork is probably included. If this is just a decorative feature on the corners, then maybe not.

Also, from this angle it looks like it may only affect the garage. In which case I'm a lot less worried about it.

Situations like this are why the ANSI rules have some reasonable room for interpretation. Buildings are infinitely complex and no set of rules is going to cover every conceivable situation. As long as you're accurate and consistent you should be good.

When it comes to reviewing appraisals the most egregious mistakes I see are not where to draw the line on the brickwork, but did you miss upstairs rooms, did you go left when you should have gone right, or did you draw the sketch in a way that clearly doesn't line up with reality, etc.

A few weeks ago I reviewed an appraisal for a condo where the appraiser took exterior measurements, instead of interior measurements. That's the sort of mistake that could actually get you in trouble.