Here are the categories - and here are my guesses, can someone please verify them? I am really confused on some of these?

Choices:
a. component of operating income
b. as a non-operating income item (other income or expense)
c. a separately reported item (below the line)
d. an item of comprehensive income
e. an adjustment to retained earnings

Problem:
Calstone, Inc. prepares an annual statement of income and comprehensive income. The following situations occurred during the company's 2009 fiscal year:

Need to put which categories they belong to:

1. An earthquake destroyed a manufacturing facility. The event is considered to be unusual and infrequent in occurrence. (Guess: c)

2. Land that had been held as an investment was sold and a gain was recognized. (Guess: b)

3. Losses from foreign currency translation were recognized. (guess: b)

4. Interest revenue was recognized. (Guess: b)

5. A division was sold that qualifies as a separate component. (Guess: c)

6. Unrealized losses on invstments accounted for as securities available for sale were recorded. (PLEASE HELP ME WITH THIS ONE!)

7. The conroller discovered an error in the calculation of 2008's revenue. (Guess: e)

8. Restructuring costswere incurred due to downsizing and reorganization of a manufacturing facility. (Guess: a)