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: How many pairs of spinal nerves are connected to the spinal cord? 
 Options:  <1> Twenty eight. <2> Twenty nine. <3> Thirty one. <4> Thirty-three. <5> Thirty-five.
3

Question: How is the pigmented and highly vascularized layer of the posterior wall of the eyeball called? 
 Options:  <1> Iris. <2> Choroid <3> Ciliary body. <4> Sclera <5> Retina.
2

Question: Which of the following statements related to breast cancer is correct ?: 
 Options:  <1> Infiltrative ductal carcinoma is the least frequent histological type (around 510%) <2> If the tumor is located in the nipple, it is called Paget's disease. <3> Total mastectomy involves excision of the breast, the areola-nipple complex, and axillary lymph node dissection. <4> It does not produce metastasis in the bone tissue. <5> When there is metastasis, hormone therapy is contraindicated.

2