If the plan does not exist, the Query Optimizer then uses its cost-based optimizer to generate several execution plan options True O False QUESTION 2 Actual Execution Plan views option combines the estimated and actual plans into an animated plan that displays execution progress through the operators in the plan O True O False QUESTION 3 You will need to use one of the actual plan options to see query results as well as the plan. O True O False QUESTION 4 Estimated Execution Plan generated by the query optimizer. The metadata and size of query memory grant are based on estimates from the statistics also contains the execution context for the query, which includes the estimated and actual row counts, any execution warnings, number of processors used and elapsed O True O False