In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Q: Question: What is the factor, among the following, that has shown a greater ability to predict a bipolar disorder ?:
Options: <1> Have a serious personality disorder <2> Be under 24 years old and be male. <3> Pregnancy. <4> Consumption of alcohol and / or substances. <5> Having a family history of having suffered the disorder.
A:
5