IF YOU ARE NOT SURE WHICH UNITS YOU NEED TO STUDY, USE THE STUDY GUIDE ON PACE 326. This is the fourth edition of English Grammar in Use. Who wrote...

IF YOU ARE NOT SURE WHICH UNITS YOU NEED TO STUDY, USE THE STUDY GUIDE ON PACE 326. This is the fourth edition of English Grammar in Use. Who wrote the original edition and who is the author grateful to for the production of this fourth edition?

The original edition of English Grammar in Use was written by the author.
The author is grateful to his colleagues and students at the Swan School of English, Oxford for their help, encouragement, and interest in the original edition.
The author is grateful to Noiri'n Burke, Annabel Marriott, Matthew Duffy, Liz Driscoll, Jane Walsh, Jeanette Alfoldi, and Kamae Design for the production of the fourth edition.
The author is grateful to Cambridge University Press for permission to access the Cambridge International Corpus.
The author is grateful to the illustrators Humberto Blanco, Paul Fellows, Sophie Joyce, Katie Mac, Ian Mitchell, Gillian Martin, Sandy Nicholls, Roger Penwill, Lisa Smith, Dave Whamond, and Simon Williams.
a) Only I and II are correct.
b) Only II, III, and IV are correct.
c) Only I, III, IV, and V are correct.
d) All affirmations are correct.