Sentence Correction

Because of limited available funds, some non-profit companies had elected to
train their current employees in management techniques rather than recruiting
knowledgeable managers from outside sources.

(A) had elected to train their current employees in management
techniques rather than recruiting
(B) had elected training current employees in management techniques
rather than recruiting
(C) have elected training current employees in management techniques
instead of recruiting
(D) have elected to train current employees in management techniques
rather than recruiting
(E) have elected to train current employees in management techniques
rather than recruit

Another one on parallelism.

My analysis :

A)Not parallel : had elected (to train)....rather than...(recruting)
Hence, incorrect

B)Unsure. It seems parallel in the first look: had elected..(training)....rather than...(recruiting)

Spotted another error: the use of past perfect had elected
Hence, incorrect

C)Seems parallel. No past perfect error. have elected (training)...instead of...(recruiting)
Noticed the shift from rather than to instead of .Keep it for now.

D)No parallel. have elected (to train) rather than (recruiting)
Hence, incorrect

E)It is parallel. No past perfect error.
Keep.

The only reason I eliminated C is because E uses 'to + verb' construction, which shows 'purpose' which brings out the meaning of the sentence.

Experts, your opinions please. Is it correct to eliminate C on this basis ?[/i]