62 yo woman comes to the physician for a routine health maintenance exam. she feels well. menarche was at the age of 13y, and menopause occurred 19y ago. she has no family hx of breast dz. examination shows a 2x2cm mass in the upper outer quadrant of the l breast. mammography of the l breast shows calcifications in the upper outer quadrant. a biopsy of the breast mass shows invasive estrogen receptor-positive carcinoma with positive margins. which of the following is the most appropriate next step in management? a. observation only
b. cytotoxin and doxorubicin therapy
c. tamoxifen therapy
d. radiation therapy
e. reexcision of the biopsy site

Identify a team sport from another country that you have seen or read about and compare/contrast it to a team sport played in the united states.

Iwill mark you brainlest if you answer this question

In 2009, a flu pandemic was believed to have originated when viral transmission occurred from pig to human, thereby earning the designation, "swine flu." although pigs are thought to have been the breeding ground for the 2009 virus, sequences from bird, pig, and human viruses were all found within this newly identified virus. what is the most likely explanation of why this virus contained sequences from bird, pig, and human viruses? a) the virus was descended from a common ancestor of bird, pig, and human flu viruses.b) the infected individuals happened to be infected with all three virus types.c) related viruses can undergo genetic recombination if the rna genomes mix and match during viral assembly.d) the human was likely infected with various bacterial strains that contained all three rna viruses.