| 1 | A | B | C | D | E |
| --- | --- | --- | --- | --- | --- |
| 2 | German submarine U-775 - Summary of raiding history |  |  |  |  |
| 3 | Date | Name | Nationality | Tonnage | Fate |
| 4 | 6 December 1944 | HMS Bullen | Royal Navy | 1,300 | Sunk |
| 5 | 28 February 1945 | Soreldoc | United States | 1,926 | Sunk |
| 6 | 6 March 1945 | Empire Geraint | United Kingdom | 6,991 | Damaged |

Question: How effective were the U-775 submarines during the war? 
Answer: German submarine U-775 sank one merchant ship, for a total of 1,926 gross register tons (GRT), one warship sunk (1,300 tons) and one merchant ship damaged (6,991 GRT).