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: The classical pathway of complement is activated in response to: 
 Options:  <1> Antigen-antibody complexes. <2> Direct binding of C3b to bacterial walls. <3> Microbial glycolipids. <4> Properdin <5> The C-reactive protein.
1

Question: In general, viruses that have a naked capsid: 
 Options:  <1> They are stable against drying. <2> They are commonly released from the host cell by budding. <3> They are very sensitive to detergents. <4> They are very sensitive to the conditions in the intestinal tract. <5> They can not be neutralized by host antibodies.
1

Question: If the thyroid hormones are increased and both TSH (thyroid stimulating hormone) and the uptake of radioactive iodine by the thyroid gland are decreased, it is a process of: 
 Options:  <1> Thyrotoxicosis not hyperthyroid. <2> Primary hyperthyroidism. <3> Hypophyseal hyperthyroidism. <4> Graves-Basedow disease. <5> Increase in gonadotropins.

1