单项选择题

It is time for worries in the Eurozone. Confidence in the ability of political leaders to solve Greece’s financial crisis is (62) rapidly. The slowing down of German’s economy has (63) Greek bonds (债券), and worries are (64) about in other Europe’s countries, such as Portugal.
The chance has been missed for a swift, (65) response that would have ended all the alarm-Greece’s problems were (66) clear late last year, and four months on, the negotiations are still continuing. So, a piece of news today from Royal Bank of Scotland (67) the final option to end the crisis, shows the negative mood about Greece’s problems.
Royal Bank of Scotland (in short RBS) suggests the European Central Bank (ECB) (68) help to (69) Greece. So far, the Frankfurt-based institution has not (70) a central role in emergency rescue (71) --this is a financial crisis, after all. But RBS says it could announce it was accepting all Eurozone government bonds, (72) of their credit rating. That would send a (73) that the ECB, at (74) could help Greece in one way or another.
The "best option" to help Greece (75) would be for the ECB to actually buy its government bonds (76) other central banks, the ECB avoided purchases to help the economy out of its difficulties in the months that after the (77) of Lehman Brothers in September 2008. But RBS argues that "the ECB could (78) such action (79) it come to the conclusion that the problem has now reached such a scale that the whole of the European region is (80) threat. The ECB is a euro area institution and will defend the region using all the tools available."
Many governing council members of ECB would see the purchase of government bonds as a serious compromise that plunged the ECB into trouble and (81) its independence. For the Eurozone, there are no easy ways out.

(79) should choose （）

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