What is the key factor that differentiates a Management Information System from a Decision Support System?

Select one:

a. A Decision Support System contains models that use information to make decisions.

b. A Decision Support Systems is only a software app, whereas a Management Information Systems consists of hardware and software

c. A Decision Support System is often Web-based, whereas a Management Information System is restricted to company computers for security reasons.

d. A Decision Support System consists of software and hardware, whereas a Management Information System is only software apps.