An economic recession can result from a lowering of employment rates triggered by a drop in investment, which causes people to cut consumer spending and starts a cycle of layoffs leading back to even lower employment rates.
 
		
A. a lowering of employment rates triggered by a drop in investment, which causes people to cut consumer spending and start a cycle of layoffs leading back to even lower employment rates.
		
B. a lowering of employment rates triggered by dropping investment, which cause people to cut consumer spending and starts a cycle of layoffs leading back to even lower employment rates.
		
C. falling employment rates triggered by a drop in investment, causing cutbacks in consumer spending and starting a cycle of layoffs that lead to even lower employment rates.
		
D. falling employment rates that are triggered by a drop in investment, causing people to cut consumer spending and starting a cycle of layoffs that lead back to even lower employment rates.
		
E. falling employment rates that are triggered by a drop in investment, that cause cutbacks in consumer spending and the start of a cycle of layoffs leading to even lower employment rates.
OA is C
My Question : Why option E is incorrect?
                    Why use of "THAT" is incorrect here?