Read the excerpt from Narrative of the Life of Frederick Douglass. I suffered more anxiety than most of my fellow-slaves. I had known what it was to be kindly treated; they had known nothing of the kind. They had seen little or nothing of the world. They were in very deed men and women of sorrow, and acquainted with grief. Their backs had been made familiar with the bloody lash, so that they had become callous; mine was yet tender; for while at Baltimore, I got few whippings, and few slaves could boast of a kinder master and mistress than myself; and the thought of passing out of their hands into those of Master Andrew. . .

What is the cause of Douglass’s anxiety in the excerpt?

A:He is not used to the suffering he might endure with a new master.
B:The other enslaved persons are resentful of his privileges with his kind master.
C:He is expecting to be separated from the rest of his family.
D:He is planning to run away and is terrified of being caught.