[单项选择]

About one in twenty adults in the United States cannot read English. A new federal study shows that adults made little progress in their reading skills between 1992 and 2003.
The National Assessment of Adult Literacy is the most important test of how well adult Americans can read. Researchers tested nineteen thousand people over the age of sixteen. The study represents an adult population of two hundred twenty-two million. Those who took part were tested on how well they could read and understand information used in everyday life, The study found that eleven million adults, or five percent, cannot read English. They could not answer even the easiest written questions. Four million of them most likely cannot speak English either. The study shows that more than forty percent of adults can perform only simple reading activities. For many, even that can be difficult. Fifty-six percent of adults can perform moderate or complex activities. Moderate can mean finding info
A. A little bit more than seven percent.
B. Fifty-six percent.
C. More than forty percent.
D. Thirteen percent.

About one in twenty adults in the United States cannot read English. A new federal study shows that adults made little progress in their reading skills between 1992 and 2003.
The National Assessment of Adult Literacy is the most important test of how well adult Americans can read. Researchers tested nineteen thousand people over the age of sixteen. The study represents an adult population of two hundred twenty-two million. Those who took part were tested on how well they could read and understand information used in everyday life, The study found that eleven million adults, or five percent, cannot read English. They could not answer even the easiest written questions. Four million of them most likely cannot speak English either. The study shows that more than forty percent of adults can perform only simple reading activities. For many, even that can be difficult. Fifty-six percent of adults can perform moderate or complex activities. Moderate can mean finding info
A. eleven million adults could answer only the easiest written questions
B. more than forty percent of adults find it difficult to perform simple reading activities
C. blacks, Asians and Hispanics had the biggest increases in English reading skills
D. the best readers earn more money than those who lack simple reading skills