 
			 
			MCQOPTIONS
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				| 1. | ___________take_as_input_a_single_expression,_evaluating_the_expression_once_for_each_input_document,_and_maintain_their_state_for_the_group_of_documents.$ | 
| A. | Computer | 
| B. | Monitors | 
| C. | Accumulators | 
| D. | Performoner | 
| Answer» D. Performoner | |