But, my understanding is that the test is purposefully opaque, so that any answer can be considered “wrong”, at the discretion of whoever’s running the test.
The way something like this was administered, was that tests returned by white people were given a cursory glance and accepted, and tests returned by black people were just rejected and given some random explanation as to why they were wrong, and then the test was chucked in the garbage. Nobody cared what the right answer was, all that mattered was there was some fig leaf explanation for why black voters couldn't vote. Mostly black voters stopped bothering to try after a couple of go arounds here -- not to mention the physical intimidation that went along with it. The point was to inculcate learned helplessness.
This wasn't the SAT, y'all.