Which of the Following Students Would Be Identified as Having

Which of the following students would be identified as having difficulty with generalization of learning?

A) Billy can tie his sneakers but not his dress shoes.
B) Keelee can add three-digit numbers but she can't subtract them.
C) Jacob has learned how to read music but he refuses to help his brother learn it.
D) Melvin has learned to write his name in cursive at school, so he wants to write it at home and at church.