What are some of the meta-philosophical questions related to the relationship between argumentation and philosophy?

The importance of argumentation in philosophy has been used as a criterion to differentiate philosophical styles.
The distinction between analytical and continental philosophy is based solely on geographical and historical origins.
The function and value of philosophical arguments are not relevant to meta-philosophical questions.
a) Only I is correct.
b) Only II is correct.
c) Only III is correct.
d) I and II are correct.
e) I and III are correct.