The author presents rational and logical reasons to support his argument.
Option C.
Step-by-step explanation:
The argument that was presented by the author was that the students should be provided and required to complete a particular number of service hours in order to complete their graduation and be a graduate.
This will give them the practical and first hand experiences in their own field of study and will help them gain knowledge in a better way. For this argument the author makes use of logical and rational reasons.