Which statement is true about the MAG Series devices?

A.
The MAG2600, MAG4610, MAG6610, and MAG6611 have fixed configurations.

B.
The MAG2600, MAG4610, MAG6610, and MAG6611 have modular configurations.

C.
The MAG2600 and MAG4610 have fixed configurations and the MAG6610 and MAG6611 have
modular configurations.

D.
The MAG2600 and MAG4610 have modular configurations and the MAG6610 and MAG6611
have fixed configurations.

Explanation:
http://telenet.ba/downloads/MAG%20prezentacija/MAG%20Series%20Overview.pdf
(slide 12)