FatherinLaw retired what he need to select in Family Visit

[nischerry]

1.My Father is a retired Security(Police Officer) and mentioned the working status as Retired and he gets the monthly Income in the form of Pension. I noticed in the monthly income details section that there is no such pension item been listed in the total monthly income from section where as it is displaying items like

Savings and Investments
Properties and Rents
Stocks and Shares
Public funds or Benefits
other sources including friends and family.

My question is my father is Retired Security(Police Officer) and which item from the above list is he need to select to complete the visit visa application? as we are bit confused which one to select as there is no Pension item in the list to mention Total Monthly Income From.