Answer:
a) Jake follows through on his work plan but is hindered but an unforeseen event.
Step-by-step explanation:
Option a). shows a limitation in planning because here in this sentence, Jake is not certain about an unexpected event to occur while planning. Thus Jake although follows through his work plan but is affected and is obstructed to complete or finish his work according to what he have planned because of an uncertain event.
This shows his limitation in planning or lack of planning.
Thus the answer is
a) Jake follows through on his work plan but is hindered but an unforeseen event.