Final answer:
The Science of Reading is not a Scholastic Single-source program as educational materials come from various sources; thus, the statement is false.
Step-by-step explanation:
The question regarding whether the Science of Reading is a Scholastic Single-source program is based on the context of educational resource sales and distribution. This is a statement that would be verified by the policies and offerings of Scholastic, a company specializing in the provision of educational materials and programs. From the provided reference materials, it can be determined that educational content like textbooks are available from a variety of sources, including open-access programs and diverse publishers, not just Scholastic. Therefore, it is false to assume that the Science of Reading is exclusive to Scholastic.