Question

Choose the odd one out.

• A. neutrophil
• B. basophil
• C. RBC
• D. eosinophil

Answer 1

The correct option is C

RBC

The odd option is (C).

Explanation of the correct option:

1. RBC is a type of blood cell.
2. These are red in colour due to the presence of a pigment named hemoglobin in them.
3. They transport oxygen to different parts of the body.
4. They are not a type of white blood cell, therefore they are the odd one among the other options.

Explanation of the incorrect options:

Option A:

Neutrophil is a type of WBC, which is the first responder of immune cells.

Option B:

Basophil is a type of WBC, which release histamine to suppress a non-specific immune response.

Option D:

Eosinophil is a type of WBC, which fight with pathogens that provoke allergy symptoms.

Final answer: The odd one among neutrophil, basophil, RBC and eosinophil is RBC.