Which sentence most clearly contains understatement?
 A. We hit a bit of a snag driving here when the bridge we were on
 collapsed.
 B. "Look out!" the stagecoach driver shouted as bandits descended
 on us.
 OC. No other country can cmpare to the power, size, and grandeur of
 Palau.
 D. Pellets of rain popped against the tin roof as the heavens above
 opened up.