In order to obtain a Child Development Associate credential, you must

a. demonstrate certain competencies.

b. have a specified number of years of experience.

c. have a certain level of academic achievement.

d. provide an album of teaching experiences for evaluation

The correct answer is that you must d. provide an album of teaching experiences for evaluation. Specifically, this is called CDA Professional Portfolio. This portfolio will later be evaluated by a professional, who might want to check your work in practice and test you in an exam.