Question

where are lymph nodes located?
a neck, under the arm, pelvis, and groin
b in all extremities
c pelvis, groin, spleen, tonsils
d neck only

Explanation:

Lymph nodes are found in clusters in areas like the neck, armpits (under - the - arm), pelvis, and groin. They are not present in all extremities. The spleen and tonsils are other lymphoid organs but not locations of lymph nodes.

Answer:

A. neck, under the arm, pelvis, and groin