good question. I was too fast in selecting my answer as C and missed the OA. However, I understand the correct option.
Heavy commitment by an executive to a course of action, especially if it has worked well in the past, makes it likely to miss signs of incipient trouble or misinterpret them when they do appear.(A)
Heavy commitment by an executive to a course of action, especially if it has worked well in the past,
makes it likely to miss signs of incipient trouble or misinterpret them when they do appear. - This appears as 'heavy commitment..... makes it likley to miss signs'...incorrect
(B) An executive who is heavily committed to a course of action, especially one that worked well in the past,
makes missing signs of incipient trouble or misinterpreting ones likely when they do appear. - plain awkward
(C) An executive who is heavily committed to a course of action is likely to miss or misinterpret signs of incipient trouble when they do appear,
especially if it has worked well in the past. - 'especially if it has worked well in the past' should be placed next to 'course of action' and not miles apart.
(D) Executives' being heavily committed to a course of action, especially if it has worked well in the past, makes them likely to
miss signs of incipient trouble
or misinterpreting them when they do appear. - not parallel
(E)
Being [the process of] heavily committed to a
course of action,
especially one that has worked well in the past,
is likely to make an executive miss signs of incipient trouble or
misinterpret them when they do appear. - parallel.
CORRECT