I think it might be a or d i hope i have helped :)
        
                    
             
        
        
        
Answer:
(A) Distance will be equal to 1.75 km
(B) Displacement will be equal to 1.114 km
Explanation:
We have given circumference of the circular track = 3.5 km 
Circumference is given by 
r = 0.557 km 
(a) It is given that car travels from southernmost point to the northernmost point.
For this car have to travel the distance equal to semi perimeter of the circular track 
So distance will be equal to 
(b) If car go along the diameter of the circular track then it will also go from southernmost point to the northernmost point. and it will be equal to diameter of the track 
So displacement will be equal to d = 2×0.557 = 1.114 m 
 
        
             
        
        
        
The so-called greenhouse effect is observed only in houses painted green, and even there, only between the hours of 2PM - 4PM local time on Thursday afternoon.
 
        
             
        
        
        
Answer:
i/f = i/o + i/i       f = focal, o = object, i = image
1 / i = 1 / f - 1 / o  =    (o - f) / o f
i = o * f / ( o - f)      image distance
i = 12.5 * 22 / (12.5 - 22) = -28.9 cm
Image is real
Image is 28.9 cm to left of lens
M = - i / o = = 28.9 / 12.5 = 2.3     magnification (convex lens)