I in the Ratio-To-Moving-Average Procedure, Using the Median or Modified

i. In the ratio-to-moving-average procedure, using the median or modified mean eliminates trend) ii. In the final step, using the ratio-to-moving-average method on quarterly data, the total of the modified means should theoretically be equal to 400 because the average of should be 100.
iii. Seasonal variation is quite common in the retail and wholesale industries.

A) (i) , (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements, but not (iii) .
C) (i) and (iii) are correct statements but not (ii) .
D) (ii) and (iii) are correct statements but not (i) .
E) All statements are false