Which sentence is appropriate in a letter to a friend but not in a formal report?
a) brisbane is located about ten hours north of sydney, australia.
b) it's a really cool place because it's right on the coast near the beach.
c) brisbane is a popular tourist destination because it is located on the coast.
d) most americans fly into sydney and then take a connection from sydney to brisbane.

Correct answer is B.

Explanation:

When we write informal letter, we usually write same as we speak, so informal language, contractions and slang words are allowed, such as the use of "cool" in answer B.

When it comes to formal language, contractions (it's, we're, etc.) are not allowed, as well as slang words. Answers A, C and D can be suitable for formal report since they use formal grammar and language with exact details.

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explanation:

and also the mystery girl it might be someone that she might know in her school

i believe that's the correct answer