Is an or a one-wheel bike ?​

Is the sentence the refree blew her whistle and both teams rushed onto the field a coumpound or simple sentence

Lauses unnecessary to the meanings of the words modified demonstrative 2. clauses necessary to the meanings of the words modified relative 3. words for which pronouns stand intensive 4. a pronoun ending in -self and referring to the previously used noun or pronoun nonrestrictive clauses 5. a pronoun ending in -self and used for emphasis restrictive clauses 6. pronouns that ask questions indefinite pronouns 7. pronouns that point out to whom or to what the speaker is referring reflexive 8. everyone, nobody, and something are examples antecedents 9. pronouns introducing adjective or noun clauses interrogative 10. i, you, him, mine, and their are examples personal pronouns

Which statement from the tinker v. does moines court decision best supports the reasoning that the conduct of the student protesters was within the protection of the free speech clause of the first amendment