Final answer:
Crispin was surprised to learn that he had been baptized and had a name, as well as the fact that his mother could read and write. This surprise stemmed from the restrictions and limitations placed on slaves' access to education and literacy.
Step-by-step explanation:
Crispin was surprised to discover that he had been baptized and had a name, and that his mother could read and write because these were privileges that were not usually granted to slaves. In the context of the passages provided, it is clear that literacy and education were highly restricted for slaves, and many were not even allowed to learn how to read. Therefore, Crispin's surprise stems from the fact that he had access to knowledge and opportunities that were denied to most slaves.