Answer:
a. True
Explanation:
A beta fibers relay touch senses while the A delta relay pain and temperature information.
 
        
             
        
        
        
I believe that the correct match will be;
Prominences- A
Sunspots - B
Solar flares - C
Convection -D
Prominence is a large, bright feature extending outward from the Sun's surface. Prominences are anchored to the Sun's surface in the photosphere, and extend outwards into the Sun's hot outer atmosphere, called the corona. 
Sunspots are darker, cooler areas on the surface of the sun in a region called the protosphere. Solar flares are large eruptions of electromagnetic radiation from the sun lasting from minutes to hours. 
        
                    
             
        
        
        
Clean or green energy helps in releasing lesser air pollution and lesser carbon dioxide. That contributes in lowing down global warming and subsequent disasters like tsunami because of glacier melting , more unexpected climate changes like unexpected long-period storms, flood, typhoons,  etc. 
Hope this would help.
 
        
             
        
        
        
Nucleotides is the answer: they have a phosphate group, a deoxyribose sugar, and a nitrogenous base.