Which of the following best expresses the author's main concern

单项选择题The author uses Abstract Expressionist painter as an example to show that ______.

单项选择题According to the passage, all the following are true except ______.

单项选择题It is implied that many professional photographers are of the opinion that ______.

单项选择题After reading the passage, one would refrain from concluding that ______.

单项选择题The author states that many educators feel that ______.