Let’s go through this step-by-step.  

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**1. Entity A (Ørsted A/S)**
- Already has hybrid capital on its balance sheet (DKK ~19.8bn in 2022).
- Has actively managed hybrid capital (issuance, repurchase, coupon payments).
- Positive profit attributable to hybrid capital owners and actively pays coupons.
- High revenue growth (DKK 77.7bn to 132.3bn).
- Strong green energy profile would likely appeal to ESG-linked hybrid bond investors.
- Conclusion: **High potential for a new hybrid bond transaction**, as they are a repeat issuer.

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**2. Entity B (Enel SpA)**
- Already has perpetual hybrid bonds in equity (~EUR 5.6bn).
- Has paid hybrid coupons; issued hybrids in prior year.
- Large, well-known issuer in the hybrid market.
- Profitability under pressure due to impairment and discontinued operations loss in 2022.
- Still actively refinancing and managing debt.
- Conclusion: **Second most promising** — large, known issuer but possibly less urgent need for new hybrid in the near term.

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**3. Entity C (A2A S.p.A.)**
- Balance sheet shows no hybrid capital.
- Smaller equity base and not previously active in hybrid market.
- Relatively smaller company; lower net profit.
- Would be new to the instrument, meaning longer lead time to educate, structure, and market.
- Conclusion: **Least promising near-term prospect** for a hybrid bond.

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**Final priority ranking**:  
Most promising first → Ørsted (A), then Enel (B), then A2A (C).

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<answer>A,B,C</answer>