Answer:
b. methylation.
Explanation:
Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments. 
Genome editing can be defined as a high-tech process which avail scientists the opportunity or ability to remove (delete), replace and insert Deoxyribonucleic Acid (DNA) sequence in a living organism such as bacterias, animals, plants etc in order to correct a genetic disorder and to improve on their physical and chemical conditions.
Transcription can be defined as a process which typically involves re-writing the informations contained within a Deoxyribonucleic Acid (DNA) into a Ribonucleic Acid (RNA) by enzyme RNA polymerase. 
Hence, DNA regions that are transcriptionally silenced by hypercondensation have often undergone a modification of their cytosine residues termed methylation.
For example, CpG island methylation transcriptionally silences about 650 to 800 genes in patients suffering from colorectal cancer. 
 
        
             
        
        
        
Hypertension or simply termed as high blood pressure is a condition
In the cardiac system where the blood pressure and transfer from one part of
the body to another exceeds the normal levels of the body. The heart is
strongly pumping blood throughout the body which is caused by either lipid
deposits in the vessels or in the heart itself. 
Hence hypertension contributes to the conditions that
already exists such as stress, or existing disorders and worsen it.  
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Plasmid or vector transformation is the process by which exogenous DNA is transferred into the host cell. Transformation usually implies uptake of DNA into bacterial, yeast or plant cells, while transfection is a term usually reserved for mammalian cells.
        
             
        
        
        
Answer:
i think ti would be D. sorry if it's wrong.
Explanation:
 
        
                    
             
        
        
        
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