Question

Why has the Supreme Court repeatedly ruled that flag burning is a protected form of political protest?

Flags are not considered symbols.
Flag desecration laws were violating the separation of church and state.
"Government may not prohibit the expression of an idea simply because society finds the idea itself offensive."
"Truth is great and will prevail if left to itself."

Answer 1

"Government may not prohibit the expression of an idea simply because society finds the idea itself offensive" is the best option from the list, since this was the exact wording of the winning argument.