Answer: The correct answer is A.
Explanation:
The word convention means the accepted way of doing things. This can be applied to the Engish language and its rules. The rules of English or conventions are a set of widely accepted standards or practice. For instance, in writing a narrative, we can find the convention of including characters, setting and a plot and in writing a letter there is a layout to follow. In both cases, people will know that they are reading a narrative or a letter because of the conventions included.