why option 3 is risky?

I do not understand why option 3 is risky. To me at least option 3 is better than option 1.

However, option 2 is more comfortable.

所有跟帖： 

• thanks for your input! -mom2007- ♀ (122 bytes) () 06/16/2007 postreply 19:05:14

• 5 years ARM is a much better choice than 30 year fixed rate. -newcomer10- ♀ (437 bytes) () 06/16/2007 postreply 19:10:47

• risk and premium -小小石头- ♂ (0 bytes) () 06/16/2007 postreply 19:31:37

• ddd -表情符号- ♀ (0 bytes) () 06/16/2007 postreply 19:53:55