[单项选择]

America has had many presidents who have been famous all over the world. People from other countries know the names Washington, Kennedy and so on. However, many men who have served as president of the United States have not been famous in other parts of the world. One example is J. Q. Adams, the sixth man to serve as U.S. president.
Very little happened while Adams was president. It was an unhappy time for him, and he wasn’t very effective, when his term ended, he went back to the Congress and served as a representative (众议院议员). While he was in Congress, people began to respect him more than they had done while he was president. Adams was strongly against slavery and tried to outlaw it in Washington D. C. People began to look back on his presidency with a different view. Now they saw that he was an independent man with high ideal who loved his country and hated slavery. Adams died in 1848 while speaking in the House of Representative.

Which of the following can
A. Adams had ability, but he had no chance to show it.
B. As a president, Adams was unfit for his work.
C. Adams was not an effective man.
D. Adams was worth respecting.