33.
The answer is: C
Explanation
The correct answer is C: Symbols
According to Section 29 of the Indian Penal Code, 1860 (IPC), a document is any matter expressed or described upon any substance by means of letters, figures, or marks, or by more than one of those means, intended to be used or which may be used as evidence of that matter.
A document can be in electronic form or in any other form, and it includes a map, plan, drawing, photograph, or any other image.
A document can be created on any substance, such as paper, parchment, cloth, metal, stone, or any other material. A document can contain any combination of symbols, such as alphabets, numerals, signs, or even a signature, and it is the context in which they are used that determines their meaning.
A document can be of public or private nature, depending on whether it is made by or under the authority of a public officer or a private person.