This is a multiple-choice quiz, to test the traditional Japanese radicals (部首). The total number of these radicals is 218, however, as some of these radicals (such as 丶 or 丿) are too simple to quiz, merely 208 radicals are included in this quiz.
The intended purpose of this quiz is to make it easier to recognize radicals as common kanji bulding blocks, and thus facillitate kanji memorization.