My defined benefits pension plan is terminating and offering a 52 year old the following options:1. Lump sum distribution to my IRA of $121,170, 2. $673 per month annuity now, 3. $912 per month annuity at age 55 or 4. $1900 per month annuity at age 66. I have a 401 K and an IRA already active. Which option makes the most sense since I do not plan to retire for at least ten years and what type of investment would be prudent for someone who is an average risk taker?