You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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'.

Question: A 13-year-old girl is operated on due to Hirschsprung illness at 3 months of age. Which of the following tumors is more likely to be present?
Options: <1> Abdominal neuroblastoma <2> Wilms tumor <3> Mesoblastic nephroma <4> Familial thyroid medullary carcinoma.
Solution: 2
Why? The answer to the given question should be a tumor, therefore Wilms tumor is the correct answer for the given question.

New input: Question: Indicate which of the following options does NOT suppose a normal response of the child's motor development in its first year of life:
Options: <1> By 3 months, he is able to hold his head when he is incorporated. <2> By 4 months, the trunk begins to straighten up although the balance is still immature. <3> By 8 months, he dominates the sitting position and frees his hands to hold objects while maintaining balance. <4> Towards 10 months, start some steps. <5> By 12 months, the act of running appears.
Solution:
5