Match order of the reaction (in List-I) with the corresponding rate constant (in List II).
`{:("List I (order)","List II (rate constant)"),((A)"Zero",(p)K=1/(2t)[1/((a-x)^2)-1/a^2]),((B)"First",(q)K=1/(t)[1/((a-x))-1/a]),((C )"Second",(r)k=x/t),((D)"Third",(s)k=1/t"log"_e(1/(a-x))):}`