For the first one the correct answer is variant A because of the appositive developed phrase ' <span>grown in many parts of the world ' .
For the second one the correct answer is variant B because that sentence doesn't need any comma's like the other ones.</span>
Well we have the famous Greek tale of Heracles, the Chinese Tale of shooting down the 49 out of 50 suns in the Sky, the Tale of how the City of Troy stood for so long even against the mighty Achilles talked about in the Illiad, and many more
In the list of sentences above, the one that shows the correct agreement between nouns and the pronouns is sentence D. In this sentence, the subject is the "clowns". This is plural subject. Therefore, the pronoun that should replace is plural too and in this case, it is the pronoun "their".
Concrete facts is not used for adding vivd detail. It is important, but it doesn't help in this particular regard. So the answer is A.
