Answer:
D) Unsupervised Data mining
Explanation:
Unsupervised data mining also refered to as undirected data mining reveals hidden patterns in unlabeled data. In this method, there are no output variables to predict. The aim of an unsupervised data mining technique is to uncover patterns in data based on the relationship between the data points and each other
 
        
             
        
        
        
Could be anything?
Maybe you get an email from them on their PC, which means they have internet
        
             
        
        
        
In an overhead valve engine, pushrods connect to A. rocker arm which pivots and opens valves
        
                    
             
        
        
        
Explanation:
deterministic system is a involved in development of future states of the system is called deterministic determinstic system.