I believe the answer is true
Depends on what rules your talking about
Answer:
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.
The answer to your question is The grade of a metric bolt is designated by the number stamped on the head of the bolt.
Are you talking about like a notification??
if so it is a red square