Hemopoietic agents

A 34 years old female suffered from megaloblastic anaemia that results from vitamin B12 deficiency. It is due to inadequate supplies of which of the following?

A 56 years old female after finishing her Twenty months chemotherapy, the woman had a relapse of breast cancer. The cancer was now unresponsive to standard doses of chemotherapy. The decision was made to treat the patient with high-dose chemotherapy followed by autologous stem cell transplantation. Which of the following drugs is most likely to be used to mobilize the peripheral blood stem cells needed for the patient’s autologous stem cell transplantation?