The answer would be C, welcome
        
             
        
        
        
Answer:
Dependent Variable
Explanation:
An experiment has dependent and independent variables. The dependent variable is the one that is being studied and responds to the independent variable.
In the given experiment, the effect of a new drug is being studied on blood pressure. Here, the blood pressure (systolic and diastolic blood pressure) is supposed to change in response to drug treatment. 
So, blood pressure is a "dependent variable" while the drug treatment is "independent variable".  
 
        
             
        
        
        
<span>Acids will break down the rocks, as the acids goes deep in the rocks cracks can form. When the cracks get to large the rock can break apart.</span>
        
             
        
        
        
Answer/Explanation:
Chloroplasts are the organelle that uses chlorophyll. Chlorophyll is in the process of photosynthesis.