Sound can travel through water for enormous distances,prevented from dissipating its acoustic energy as a result of boundaries in the ocean created by water layers of different temperatures and densities.

A. prevented from dissipating its acoustic energy as a result of
B. prevented from having its acoustic energy dissipated by
C. its acoustic energy prevented from dissipating by
D. its acoustic energy prevented from being dissipated as a result of
E preventing its acoustic energy from dissipating by

[spoiler]OA: C[/spoiler]

[spoiler]Honestly no clue at all on this problem, " As a result of" seems wordy so A) and D) would be out.
I'm not sure what grammatical rules are being tested here.[/spoiler]