Given that Loadrunner is a software testing tool, I'm assuming that the software development team member who would make the most use of that tool is A. a software engineer, because that is the person who creates software and then tests it. 
        
             
        
        
        
Answer:
struct item
{
   float previousCost;
   float taxAmount;
   float updatedCost;
} itemObject;
void calculation(int cost,int quantity,float tax)
   {
       struct item *itemPointer=&itemObject; 
       itemPointer->previousCost=(cost) * (quantity); 
       itemPointer->taxAmount=itemPointer->previousCost * (tax/100);
       itemPointer->updatedCost=itemPointer->previousCost+itemPointer->taxAmount; 
   }
Explanation:
- Define a structure called item that has 3 properties namely previousCost, taxAmount and updatedCost.
 - The calculation function takes in 3 parameters and inside the calculation function, make a pointer object of the item structure. 
 - Calculate the previous cost by multiplying cost with quantity.
 - Calculate the tax amount by multiplying previous cost with (tax / 100).
 - Calculate the previous cost by adding previous cost with tax amount.
 
 
        
                    
             
        
        
        
I think the answer to your question is opt. D
        
                    
             
        
        
        
Answer:
you may need to do this if you need to play video game that may need you to update drivers