{:(,"Column I",,"Column II (pH)"),((A),"MilK",(p),2.2),((B),"Human saliva",(q),6.4),((C),"Human blood",(r),6.8),((D),"Lemon juice",(s),7.4):}

{:(,"Column I",,"Column II (pH)"),((A),"MilK",(p),2.2),((B),"Human sal

1.	{:(,"Column I",,"Column II (pH)"),((A),"MilK",(p),2.2),((B),"Human saliva",(q),6.4),((C),"Human blood",(r),6.8),((D),"Lemon juice",(s),7.4):}
Answer» A-p, B-q, C-s, D-r A-r, B-q, C-s, D-p A-r, B-s, C-q, D-p A-q, B-r, C-s, D-p Answer :B