Thomas Mann's novel Doctor Faustus offers an examination not only of how difficult it is to reconcile reason, will, and passion together in any art form, but also a skillfully navigated exploration of the major concerns of modernism.


A. an examination not only of how difficult it is to reconcile reason, will, and passion together in any art form, but

B. an examination not only about the difficulty of reconciling reason, will, and passion in any art form, and

C. not only an examination of how difficult it is to reconcile reason, will, and passion in any art form, and

D. not only an examination about the difficulty with reconciling reason, will, and passion together in any art form, but

E. not only an examination of the difficulty of reconciling reason, will, and passion in any art form, but


Dear GMATGuru,

Could choice D be eliminated based on '' an examination about' is not parallel "a skillfully navigated exploration of".
should we either 'of' or 'about' to claim parallelism in both sentences?
Could the following be correct:

The was caused not only an increase in prices but also attack on our culture .

Thanks in advance