One who compiles dictionary

Answer: Option C

One word substitute is Lexicographer.

Calligrapher: a person who is skilled at the art of calligraphy (= producing beautiful writing, often with a special pen or brush).
Editor: a person who is in charge of and determines the final content of a newspaper, magazine, or multi-author book.
Lexicographer: a person who compiles dictionaries.
Compiler: a person who produces a list or book by assembling information or written material collected from other sources.