A. oxygen
A.
B. nitrogen
B.
C. iodine
C.
D. sulfur
D.
Correct Answer: C
সঠিক উত্তর: C
Explanation
ব্যাখ্যা
Iodine is a non-metal but has a metallic luster (shiny, grayish-purple appearance).
Oxygen, nitrogen, and sulfur are dull and do not exhibit luster.