The distal end of the humerus has
a. epicondyles
b. trochanters
c. tuberosities
d. foramina

a. epicondyles

Explanation:

Distally the humerus bone is flattened. It exhibit a prominent bony projection on the medial side it is called as the medial epicondyle of the bone. The lateral epicondyle is present on the lateral side of the distal part of the humerus bone.  

The grasping and powerful muscles of the forearm are attached with the medial epicondyle. It is typically robust and larger as compared to the lateral epicondyle. The lateral epicondyle is attached with the weaker muscles attached posteriorly.

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