Hello and thank for your question.
1. Answer B - industrial accident
2. Answer C - diabetes is both vascular and metabolic disease
3. Answer A - vascular disease
4. Answer C - neoplasm
To tell you the truth, question 2 does not make much sense. I am debating between the answer C and D. Diabetes is definitely a Metabolic disease and it can cause Vascular complications. Atherosclerosis is definitely a vascular disease which can be worsened if someone also has metabolic disease. I would still stick with answer C but if you double check in your book, it would be great.
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