(4 pts) An educational institution stores information about students, classes, and grades. State whether each of the following represents data or metadata (if it represents data, state whether it is structured or unstructured data). If it represents metadata, state whether it is a fact describing a property of data or a fact describing the context of data. Remember that metadata is data about data, like the length of a field, or if the field is optional or mandatory.

a) Students name and address.

b) Grades for a course offered in database design.

c) The resolution of a students ID photo in pixels.

d) Length of the course number field.