Which of the following statements are correct?

I.	Control is the criterion for determining whether a parent-subsidiary relationship exists.
II.	If the fair value of a depreciable asset is greater than the carrying amount, in the years subsequent to the acquisition date the depreciation expense recorded in the books of the subsidiary will be greater than that for the group.
III.	In a business combination, equity instruments issued as part of the purchase consideration should be measured at their original issue price.
IV.	The preparation of consolidated financial statements for a group relieves subsidiaries within the group from preparing individual financial statements.

a.

I. only

b.

I. and II. only

c.

I., II. and III. only

d.

I., II., III. and IV.