A customer uses an app to order pizza for delivery .

What is the answer for the question

Assessment includes a. interviews, recorded conversations, videos, frequency counts, and time samples. b. formal standardized tests and developmental screening tools. c. various types of documented observations, documentation of child work, checklists, rating scales, and standardized tests. d. anecdotal notes, narratives or daily records, daily health checks, and teacher observation checklists.

The authors use the word “backbone” in lines 3 and 39 to indicate that