Tsarina Alexandra's biggest mistake after she took over the leadership of the Russian government while her husband Nicholas II was on a battlefield was putting too much trust and confidence to Rasputin's decisions which regard to running the country. People of Russia no longer trust the royal family since then. Hope this answer helps.
The correct would be B. The Korean ships were were good at capturing port towns
Because they come from a different place with a different system compared with the city. Rules and procedures are unknown so they are forced to rely upon and trust people whom they know in the city. The urban people are knowledgeable in their area and have better instructions to give.
Osama bin Laden the infamous leader of the global terrorist organization Al Qaeda was once an important member of the U.S. backed Mujahadeen in Afghanistan.
They ambushed the Mongol Empire in China.