Consider the theories of coral reef formation and their critiques:

I. The Subsidence Theory explains coral reef formation through the sinking of land and upward coral growth.

II. The Stand-Still Theory suggests coral reefs form on stable submarine platforms.

III. The Glacial Control Theory attributes reef formation to sea levels rising post-ice age.

IV. Critics argue that uniform lagoon depths support the Glacial Control Theory unconditionally.

Which of these statements are correct?