Task: Question Answering
Input (English): Question: One of the following answers is FALSE regarding breast cancer. 
 Options:  <1> The majority of tumors (70%) have receptors for hormones. <2> The stage measured according to the TNM system is one of the prognostic factors of the disease. <3> The presence of axillary adenopathies contraindicates breast surgery. <4> Anthracyclines and taxanes are the chemotherapeutic agents most used in the complementary treatment. <5> The breast-conserving surgery associated with radiotherapy has comparable results to mastectomy.
Output (English): 3