A. Liver
A.
B. Heart
B.
C. Kidney
C.
D. Spleen
D.
Correct Answer: D
সঠিক উত্তর: D
Explanation
ব্যাখ্যা
The spleen is part of the lymphatic system and functions as a filter, storing blood cells and removing old or damaged red blood cells from circulation, making it the correct answer.