Obstruction of tear ducts resulting in a tumor-like swelling is:

A) blepharitis.
B) blepharoptosis.
C) chalazion.
D) dacryoma.

Dacryoma

A tumor of the lacrimal sac or gland, often related to the tear production system.

Chalazion

A small, usually painless, lump or swelling on the eyelid, caused by a blockage in one of the oil glands.

Blepharitis

An inflammatory condition affecting the eyelids, often associated with irritation, burning, and itching.