Riddle

A biologist is the girl's mother, but not her father. Who is the biologist?

Choose an answer

A.A grandfather
B.A cousin
C.A stepbrother
D.The girl's mother
Hint: It's a 3-word phrase with 14 letters, starting with "T".

Answer

The girl's mother

Why this is the answer

This is a lateral thinking puzzle where the solution relies on a non-obvious interpretation of the words used.

This riddle is filed under Expert Riddles for Adults and rated Hard.