bonds 同shares 的好處及壞處

"As shareholders have voting right,issue shares can increase the controlling power of the company, and thus avoid being taken over. Debenture holders have no voting right, the issue of debenture cannot increase the controlling power of the company"

以上資料對唔對架？　我０係一份Mock 卷的答案copy 出黎
但係呢，我一向學都係issue shares 的　disadvantage係　 the company easily being taken over，到底係邊個啱？