For the Elements Iodine, Fluorine, and Nitrogen; Choose the Appropriate

For the elements iodine, fluorine, and nitrogen; choose the appropriate characterization of the set's chemical symbols from the response list.

A) All symbols have one letter.
B) All symbols have two letters.
C) All symbols start with the same letter.
D) All symbols start with a letter not the first letter of the element's English name.