Interpretations of the concept "unalienable rights" have changed since the declaration of independence was written. which historical development best illustrates this change? a. the bill of rights was added to the constitution to protect rights including free speech. b. the lemon test was developed to decide whether a law violated the establishment clause. c. the supreme court determined that segregated schools did not violate the constitution. d. the constitution included an amendment process to allow it to change over time.