SAT US History Practice Question

Why did neither John Adams nor Thomas Jefferson take part in the Constitutional Convention of 1787?

1. A.Neither was willing to approve of a design for government that had no bill of rights.
2. B.Both had died by the time the Convention was called.
3. C.Both were representing the United States on diplomatic missions in Europe.
4. D.Both stayed away to protest the excision from the Declaration of Independence of the passage criticizing slavery as a "cruel war against human nature."
5. E.Neither was nominated to attend the Convention by the people of his state.