Answer:
a. extemporaneous
Explanation:
Extemporaneous -
It refers to the method of speaking about a topic in a very fluent manner , without the help of any write up , is referred to as an extempore .
A person who is very good with the art of extempore , is referred to as an extemporaneous .
Hence , from the given scenario of the question ,
Joseph is described to as an extemporaneous person .
World literature text reveals information about the particular, culture, event and genres from which they come. World literature is like a world cinema nowadays, it reveals important information of a certain culture of different people, event that happened in the past and genres.