Tyrosine kinase inhibitors are used in the treatment of-
Gastrointestinal stromal tumors (GIST)
Acute myeloid leukemia
Neurofibromatosis
Small cell carcinoma lung
Ans. is `a' i.e., Gastrointestinal stromal tumors (GIST) Tyrosine kinase inhibitors imatinib and sunitinib are approved for the treatment of Gastrointestinal Stromal Tumors (GIST).