All cll hairy cell leukemia adult t cell leukemia

A type of leukemia is diagnosed in an elderly patient who presents with bone marrow cell proliferation and high levels of CD5 in the blood. Which disease is being described?

1: Chronic lymphocytic leukemia (CLL)
2: Adult T cell leukemia
3: Hairy cell leukemia
4: Acute lymphoblastic leukemia/lymphoma (ALL)