List I (Branches) List II A. 1, 2, 3, 4 1. Twigs B. 4, 5, 6, 7 2. Links C. 1, 2, 3, 8 3. Fundamental cutset D. 1, 4, 5, 6, 7 4. Fundamental loop

• A-3, B-1, C-2, D-4
• A-2, B-3, C-1, D-4
• A-3, B-2, C-4, D-1
• A-1, B-4, C-3, D-2