Refers to the structure or format of the data, meaning the order in which they are presented.
(a) semantics
(b) syntax
(c) timing
(d) all of the above

The correct answer for the given question is option(b) i.e syntax

Explanation:

Syntax is the grammar of the structure format or order of the data meaning in which they are presented .syntax is the set of rules that define  the words,symbol are to be a correctly structured or documented in that language.

Semantics differentiate the meaning of an data from its format it is not describe structure or format of the data so this option is wrong.

timing is not the correct option so correct answer is syntax.

answer; receiver;