The correct answer is B, a social class. 'Interest groups' have the same interest that influences them. "A political party' is about politics. And D isn't correct as this is not a culture, it is merely a class.
Explanation:
Tourism certainly has the potential of taking over the burden of powering Oman’s economy and replacing its dependence on income from oil.
Oman is the second country in the Gulf Cooperation Council (GCC) states, after the United Arab Emirates (UAE) that welcomes an increasing number of tourists every year. Out of the 9.3 million passengers arriving in the country in 2015, about 36 per cent were tourists.
That sentence is an example of parallel structure.
When there is repetition of a specific grammatical form in a sentence, parallelism or a parallel structure is produced. This occurs when you mantain the same pattern for every compared word or idea in your construction. This makes the idea easier to follow by the reader.
