Answer: The Walls Protecting Athens. The walls protecting Athens during the Peloponnesian War. Initially Athens' strategy, as guided by Pericles, was to avoid open battle with the more numerous, and better trained Spartan hoplites, and to instead rely on Athens' superior fleet.
Explanation: Yes.
While there were a number of social, political, and economic causes for the Sepoy Rebellion, the spark that lit it off was an unfounded rumor that the new British issued cartridge for their Enfield rifles was loaded with cow and pig fat, which offended the repressed Hindu and Muslim minorities.
The answer would be D) California.
One way in which the Spanish War of Independence encouraged some in the colonies to seek new political and economic rights was that it showed the potential power of armed and "strong" uprisings, that refused to take "no" for an answer when it came to enacting basic structural change.