SS 4 Reading 15 End of Chapter question

Question 11, A(i) asking us to construct return objective for Muellers - the solution given is so subjective and fluffy. What exactly is the CFAI expecting ? I mean any insights as to how we should be tackling such questions ?

Take aways from 11A: Total return approach is what matters, don’t calculate return as a income, or capital gains and use only one of those. The sum is greater than the parts so to speack Inflation matters - you need to adjust the required return upwards by inflation to maintain real purchasing power. that’s how i see it at least.

Thanks strikershank…