Option B, Down
Mom has to descend the basement stairs.
You can get rid of <em>down</em>, because the word <em>descend</em> means to go down.
 
        
                    
             
        
        
        
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G5=243
Explanation:
Gn=r⁵¯¹G1
given a1/g1=3 & r=3 then substitute in the formula at the above then we will get 
G5=3⁵¯¹ (3)
 G5 =3⁴(3)
G5=81(3)
G5=243