【正确答案】 B

【答案解析】主旨题。根据naive artists didn’t have formal training in different academy and studios．和they made their own rules，were generally self-taught and their paintings had a true feeling for color form and world around them．可知朴素艺术家没有接受过正统训练，他们自己创造规则，自学成才，对于周边的世界和色彩有着真实的感受。因此，正确答案是B。

【正确答案】 B

【答案解析】细节题。根据Compared to French naive paintings that are less realistic，naive artists in United States painted images that were neat，positive，extremely accurate and almost photographic．可知美国的朴素艺术家们的作品更加逼真。因此，正确答案是B。

【正确答案】 A

【答案解析】细节题。根据There’s very little known about early naive artists in the United States because many of them did not sign their works．可知早期的一些作家的作品没有署名。因此，正确答案是A。