Final answer:
Sentence 2 is a fragment because it lacks a subject and a verb, and does not express a complete thought.
Step-by-step explanation:
The sentence that is a fragment in the given text is sentence 2: "Of planning and organizing the parade." A sentence fragment is an incomplete sentence that lacks either a subject, a predicate, or does not communicate a complete thought. Sentence 2 does not have a subject or a main verb and does not form a complete thought on its own, which makes it a fragment.