d$)$ Collecting CPP disability benefits and considered disabled in October

e$)$ Collecting CPP retirement Benefits at age $67$ in Oct $($No election on file$)$

f$)$ Collecting CPP retirement at $65$ in April $($with election to stop on May$)$

The maximum monthly amount you can receive at age $65$ is $1,203\mathrm{.}75$ but the average monthly amount is $$619\mathrm{.}75.$ if to stop on may so will not receive any further payments unless choosing to restart your pension at late date.