louellend: Please do not answer in this forum because it is the Ask the Tutor Forum, and you are not the tutor :-). However, please do help people in the other AFM forum.
foeldh123:
The examiner was wrong to refer to the 4.9% as the cost of debt because it is before tax. However the question did not ask for the cost of debt, only the WACC, and as louellend has written, in the WACC calculation the examiner has multiplied by 1-T