Edit the following passage correcting the underlined parts.1. Dolphins are very interesting animals. They, looks (a) like fish but they are not fish. Fish has (b) cold blood but dolphins have warm blood. Fish can live under water and (c) dolphins cannot. They can stay in (d) water for a long time.2. An (a) Olympic Games are the great (b) celebrations of sport in the world. They are held once in four years. The Olympic Games began at (c) Olympia in 776 B.C. They took place from time to time till (d) 393 A.D.3. Dhyanchand is (a) a very well-known hockey player. He was born at (b) 29 August 1905 in Allahabad. He studied in the (c) local secondary high school. In 1922, he joined a (d) British army as a sepoy.4. Vikram Sarabhai was responsible to (a) the setting up of the Rocket Launching station or (b) Space Science and Technology Centre in (c) Thumba in Kerala. A (d) Rocket and Launching Ranger at Srihaj-i Kota in Andhra Pradesh was set up by Dr. Sarabhai only.