Question

Blood cancer is
A. Leukemia
B. Thrombosis
C. Haemophilia
D. Haemolysis

Answer 1

Hint:- Blood cancer is also known as haematological cancer. When the bone marrow, as well as the blood cells, get affected, this condition occurs. The development and function of such cells consequently stop working normally (combating infections and restoring our body cells) and cancer cells grow beyond control.

Complete answer:
The given options are discussed below:
A. Leukemia – Leukemia is a disease of the blood caused by an increase in the body's number of white blood cells. The red blood cells and platelets your body requires to be healthy are crowded out by those white blood cells. They protect the body, as well as abnormal cells and other foreign substances, from invasion by bacteria, viruses, and fungi. The WBCs do not behave like regular WBCs in leukaemia. They can also divide too easily and crowd out normal cells inevitably.
B. Thrombosis is the method of the development of a blood clot, also referred to as a thrombus, in a blood vessel. This clot can block or hinder the flow of blood in the affected region, as well as lead to serious problems if the clot, such as the brain or lungs, travels to a critical part of the circulatory system.
C. Haemophilia is typically a hereditary bleeding condition in which there is no adequate coagulation of the blood. This can lead to accidental bleeding after trauma or surgery as well as bleeding.
D. Haemolysis is red blood cell breakdown or degradation to release the stored oxygen-carrying haemoglobin pigment into the surrounding medium. In diseases, haemolysis is commonly associated with hemolytic anaemia.
So, the correct answer is option (A), leukemia.

Note:- Myeloma is a plasma-cell tumour. They are white blood cells (WBC) that contain antibody-fighting diseases. It inhibits the development of antibodies, thus causing the immune system to weaken. Our body would henceforth be vulnerable to infection as well as other diseases.