Ibn Battuta should be better known in the West today

1)Driven by curiosity, he journeyed to remote corners of the Islamic world, traveling through 44 modern countries, three times as far as Marco Polo. Little celebrated in the West, his name is well known among Arabs.

2)Fortunately, he consented and wrote a book that has been translated into numerous languages, allowing people everywhere to read about his unparalleled journeys.

4. Which of the following would the writer of this passage most likely agree with?
A. Ibn Battuta’s journeys were very common for people of that time.
B. Ibn Battuta’s stories are probably not true.
C. Ibn Battuta’s journey was less important than Marco Polo’s.
D. Ibn Battuta should be better known in the West today.

here is several related sentences in the passage and the question. the right answer is D. i want to know the meaning of "should be better known" .
in para 1), the author compare Marco Polo(who is well known in the west) with Ibn Battuta(Little celebrated in the West), then choice D can be understood as people should know more about Ibn Battuta(the fact is they don't).
but in para 2). the author mentioned that his book is translated into numerous languages, allowing people everywhere to read about his unparalleled journeys. so choice D can be understood as Ibn Battuta is already well known in the West.
so, which explaination is right? what is the exact meaning of "D. Ibn Battuta should be better known in the West today."
thank you
waiting for your help!