Answer:
No it's not, because a square has all the sides equal, but this hasn't, therefore it's not a square
 
        
             
        
        
        
Answer:
the top one
because identity of addition is adding 0
 
        
             
        
        
        
I says every time you INCREASE by 1 degree Farenheit you go up 59 degrees C, so it is false. Same for III, if you go up or down 1 degree C that's not a change of 59 in degrees F.
That leaves B, which is right if you experiment with the math.