Final answer:
The dissenting opinion in the Tinker v. Des Moines case supported the school's right to limit student speech to prevent anticipated disruptions, which is best summarized as option B.
Step-by-step explanation:
The best summary of the dissenting opinion in the Tinker v. Des Moines Supreme Court case is there is precedent for schools limiting the rights of students when they anticipate a disruption. The dissenting opinion in the Tinker case held that the school might have a reasonable justification for their actions based on the concern that the armbands could cause a substantial interference with the operation of the school.
This perspective is supported by other court decisions which have allowed for the restriction of student speech at school if it potentially disrupts the educational process.