In 2005 Tycoon Tammy invested $100 for two years. During the the first year
her investment suffered a 15% loss, but during the second year the remaining
investment showed a 20% gain. Over the two-year period, what was the change
in Tammy's investment?<spanclass=′latex−bold′>(A)</span>5% loss<spanclass=′latex−bold′>(B)</span>2% loss<spanclass=′latex−bold′>(C)</span>1% gain<spanclass=′latex−bold′>(D)</span>2% gain<spanclass=′latex−bold′>(E)</span>5% gain