You can choose a guaranteed period of between 0 and 10 years. If, for instance, you choose 5 years then the annuity/pension would be paid for a minimum of 5 years, or for your lifetime. If the person receiving the annuity died after year 2, the annuity would be paid for another 3 years after death.
You have the option of increasing the level of annuity/pension you will receive in future years. You might exercise this option if you wanted your pension to try and keep pace with inflation. This is on a compound interest basis.
You can elect to have the annuity/pension payable to just one person or you can arrange for it to be paid to your spouse/civil partner, following your death.
This refers to the percentage of the annuity/pension that the second life would receive in the event of the death of the first life. For example, this could be 50% or 66.67% of the first life annuity/pension.
Payment in advance/arrears refers to receiving the annuity pension payment at the start or end of the month.