thanks

trying to claim the Canada caregiver amount for supporting my handicap 36 years old daughter with no income, we live in Quebec. There are two ways of claiming this amount in line 30400 OR line 30450 I would like to do two tests to see which one will give me a bigger refund , kindly tell me the easiest way to do it thanks EDIT: I manage to claim line 30400 but not line 30450. i followed the interview process , but there does not seem to be an option to do the second line