The Following Are Industries in Which Large Mergers Have Been

The following are industries in which large mergers have been blocked on antitrust grounds are:
I. aerospace II) aluminum
III. telecoms
IV. supermarkets
V. video rentals
VI. office equipment

A) I, II and III only
B) I, II, III and IV only
C) I, II, III, IV and V only
D) I, II, III, IV, V and VI