At first , her parents thought it was just a knack she had for finding keys and lost rings . Then the headaches started , and a routine bloodtest showed she was carrying the mutant gene . Her ' knack ' for finding lost keys and rings was actually a mutation .

pick from the following.
--They would feel better about their situation .;
--The headaches would 've gotten worse .;
--The family would n't know that they have a mutant gene .;
--They could continue pretending everything is okay .;
Answer the following question: What may have happened if the mutant gene was not found ?
The family would n't know that they have a mutant gene .