A Patient Receiving Chemotherapy for Leukemia Has Developed a Fever $\alpha$

A patient receiving chemotherapy for leukemia has developed a fever causing the physician to request blood cultures times three. Each set of cultures grows an $\alpha$ -hemolytic streptococcal organism. What is the most likely explanation for these results?

A) The patient probably has an infection with $\alpha$ -hemolytic strep.
B) The blood cultures were contaminated with skin biota
C) The blood cultures were probably contaminated in the laboratory.
D) The patient probably has an infection with Bacillus spp.