Answer:
The Monitor Evaluator (thought-oriented)
The Specialist (thought-oriented)
The Plant (thought-oriented)
The Shaper (action-oriented)
The Implementer (action-oriented)
The Completer/Finisher (action-oriented)
The Coordinator (people-oriented)
The Team Worker (people-oriented)
The correct answer is D. it uses imperfect coordinating structure.
Parallelism refers to the use of the same word form throughout a particular sentence. So, in the example above, in order to achieve parallelism, we would need to change the word 'vacuuming' into 'to vacuum,' in order to keep the consistency with the other two verbs: 'to dust' and '(to) straighten up.'
I think it would be a colon.
Maggie Simpson kept repeating her question: "How did I eat the whole pizza without anyone noticing?"