`{:("Column A" ,"ColumnB"),((A)"A body covers 5 m in every subsequent second",(a)"Lunar month"),((B)"Equal distances in unequal intervals of time",(b)"Non-uniform speed"),((C) "Periodic motion of the moon around the earth",(c)"Years"),((D)"Approprite unit to express the age of a person",(d) "Constant speed"):}`
A. `A to b, B to c, C to d,D to a `
B. `A to d, B to b, C to a, D to c`
C. `A to d, B to a, C to b, D to c`
D. ` A to a, B to b, C to c, D to d`