Answer:
b: space hotel to open in 2012
Explanation: i can bet that's the answer because none of the other's are the actual main topic.
The formal language
This type of language is what is used in situations that are more serious and formal, and where speakers, generally, have a distant relationship. For this to happen it is necessary to have: a correct pronunciation, adequate and varied vocabulary, well-constructed sentences or phrases (no swear words, vulgarisms, idioms). The speech is fluid and continuous, with longer sentences. in which words are not repeated or is redundant. The information is well structured and has a logical order.