'it' is ambiguous, because it could potentially refer either to 'course of action' (the intended antecedent) or to 'incipient trouble'. also note that grammatical parallelism doesn't help: both of those possible antecedents are objects of prepositions - neither is the subject of its own clause (which would thereby create parallelism with 'it', which is the subject of its clause).
e is the best choice here. i cringe a bit at the use of 'being' - my first thought is that we could make the sentence better by using a noun, such as 'commitment' - but then you'd need some sort of possessive pronoun to show that it's the executive who's committed. in any case, (e) is definitely the best of the options here, none of which is perfect by any stretch.