Step 1 – EVIDENCE 1 here:

Step 4 – EVIDENCE 2 here:

Step 5 – EVIDENCE 3 here:

Step 22 – EVIDENCE 4 here:

Step 23 – EVIDENCE 5 here:

Step 25 – EVIDENCE 6 here:

Step 26 – EVIDENCE 7 here:

Step 27 – EVIDENCE 8 here:

Step 29 – EVIDENCE 9 here:

Answer (a)

Answer (b)

Answer (c) 

Step 30 – EVIDENCE 10 here:

Step 34 – EVIDENCE 11 here:

Step 43 – EVIDENCE 12 here: