Answer: Intermediate Scrutiny
Explanation:
According to Constitutional law, INTERMEDIATE SCRUTINY refers to a test used to determine the constitutionality of a law in some specific contexts. It stands as the second level of deciding issues using judicial review.
Intermediate scrutiny is used in equal protection challenges to gender classifications and cases involving government interference on right to freedom of religion and freedom of expression.
Therefore, intermediate scrutiny will be applied by the court to the fathers lawsuit, because the law's classification scheme is based on equal protection challenges to gender classifications.