instruction:
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:
Question: The following may occur in multimeric form associated with the J chain:
Options: <1> IgA and IgG. <2> IgD and IgM, <3> IdE and IgD. <4> IgA and IgD. <5> IgA and IgM.
answer:
5

question:
Question: Somatomedin IGF-1 causes:
Options: <1> Secretion of GHRH. <2> Protein catabolism. <3> Hyperglycemia <4> Activation of osteoblasts <5> GH secretion
answer:
4

question:
Question: Which of the following molecules has a simple covalent bond?
Options: <1> C2. <2> N 2 <3> O 2 <4> O 3. <5> F 2
answer:
5