My choice is B.
(A) lowering interest rates, as well as lowering fears about inflation,
- this breaks the parallelism without the "a" before lowering
(B) a lowering of interest rates and of fears about inflation,
- this maintains the parallelism that a large drop in oil prices will lead to a lowering OF interest rates and OF fears
(C) a lowering of interest rates, along with fears about inflation,
- "along with fears about" sounds awkward
(D) interest rates being lowered, along with fears about inflation,
(E) interest rates and fears about inflation being lowered, with
- this erroneously combines interest rates and fears together
Life is not measured by the number of breaths you take, but by the number of moments that take your breath away.