In the following question, a sentence has been given in Active/Passive Voice. Out of the four alternatives suggested, select the one which best expresses the same sentence in Passive/Active Voice. Scientists generally believe that small islands would sink.

• Small islands will sink is generally believed by scientists.
• There is a general belief that small islands would sink.
• Small islands are believed to sink by scientists.
• It is generally believed by scientists that small islands would sink.