If you married or have a partner you should consider a joint life annuity as the cost of providing a partner's pension may be less than you think
The default option is 5 years. This means that if you died after 2 years of the start of the annuity, payments would continue to your dependant for another 3 years.
Sometimes it might make sense to have a 10 year guarantee, for instance if you buying a single life annuity ad have dependants.
This is one of the most options. Although level annuities pay the highest starting income, inflation will reduce your future spending power
Don't forget to consider other types of annuities
You may be able to get more flexibility without taking more risk by arranging a combination of annuities