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        | Engineering  :: Nuclear Engineering |  | 
       
        
	 
	
	 
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                |  | Inside the sun |  
                | | [A]. | four nuclei of hydrogen combine together to form one nucleus of helium | [B]. | four nuclei of hydrogen combine together to form two nuclei of helium |  | [C]. | four nuclei of hydrogen combine together to form four nuclei of helium | [D]. | one nucleus of hydrogen is transformed into one nucleus of helium. | 
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