Carlos's Relative

Riddle: Carlos was out walking one day. He met his father-in-law's only daughter's mother-in-law. What did Carlos call her?

Answer: He called her Mom!

Source: https://www.riddles.com/749

Carlos was out walking one day. He met his father-in-law's only daughter's mother-in-law. What did Carlos call her? — Carlos's relative by Anonymous v1.

Riddle: Carlos was out walking one day. He met his father-in-law's only daughter's mother-in-law. What did Carlos call her? Answer: He called her Mom! — by Anonymous v2.