Method
A question bank is easy to fill and hard to trust. A plausible-looking item with a second defensible answer teaches you a habit you then have to unlearn. So there is nothing written here: every question comes from the College Board's official SAT question bank: their passages, their options, their key, their explanations.
Source
The College Board's SAT Suite Question Bank, the same one teachers build assignments from: 3,648 questions in all. Not questions in the style of the test. The test.
Lift
Each question is kept as the College Board published it, down to the underlined phrase and the blank. Equations stay real maths instead of pictures of maths, and every graph, table and diagram comes across as it was set.
Key
The correct answer is the official one, taken from the College Board's own key for each question. Nothing here decides for itself what the answer is, which is the one thing a practice question cannot afford to get wrong.
Explain
And the reason each wrong choice is wrong is their published explanation for that specific choice: the misreading it comes from, in their words. Pick C and you are told what C assumed, not that C is not B.