The correct answer is D. The truck’s engine is more powerful than the station wagon.
Explanation:
In grammar, an "illogical comparison" is used to described mistakes in sentences when trying to establish a comparison this mainly occurs when the objects that are compared do not belong to the same category and therefore the comparison is illogical or does not make sense. This occurs in the case of the sentence "The truck’s engine is more powerful than the station wagon" because the "truck's engine" is being compared with the "station wagon" which is a vehicle, instead of the "station wagon's engine" and therefore there is an illogical comparison because an engine cannot be compared to a vehicle but only compared to another engine.
Answer: D) The rules of communication
Explanation: Conventions in language are tests in which students learn how to communicate properly. Understanding language conventions lets people know how language works, how to successfully convey their message as they speak or write, and how to listen and interpret. Therefore; they are the rules of communication.