Answer:
Choice B) 
 is final answer.
Explanation:
Given that GDP of Brazil in 2008 was roughly 1.6 trillion.
Now we have to write the given number in scientific notation.
Means write in terms of powers of 10.
we know that 1 trillion = 1,000,000,000,000
or 1 trillion 

Then 1.6 trillion 

Hence final answer is 
 .
So choice B is correct.