What is the main difference between affinity diagrams and interrelationship diagrams?

Select one:

a. The interrelationship diagraph uses a flowchart for relationships while the affinity diagram uses a matrix for relationships.

b. Interrelationship diagraphs should be used with seven or more concerns while the affinity diagram should be used with fewer than seven concerns.

c. The interrelationship digraph uses open-ended questions while the affinity diagram starts with closed-end questions.

d. The affinity diagram arranges ideas into groups, while the interrelationship digraph intends to specify the ways the ideas influence one another.

e. All of the answers are correct