A or ” ka kya rishta ha

“A” ki Biwi “B”,
“B” ki Bhabhi “C”,
“C” ki beti “V”,
“V” ka dada “G”
“G” ki biwi “K”,
“K” ki beti “T”,
To batao ‘A” or “T”
ka kya rishta ha ???

Answer= Husband & Wife