Classify the following properties. That is, state the applicable recovery period and applicable method under 168 for the following property:

1. A bond held for investment
2. An apartment building held as an investment.
3. An office building and the land on which it sits, owned by an investor. Treat each of the two items separately.
4. An automobile purchased for use in a taxicab business. It is available to drivers, but because of a recent citywide health craze, the cab has not yet been used.
5. A new third floor, placed on top of a two story apartment complex? See 168(i)(6).