Find out the meaning of the underlined idiom from the options given below: 1. It cost her an arm and a leg to bail her husband out. (A) dead cheap (B) very expensive (C) peace of mind (D) physical health 2. The party did not want to nominate Balan for the presidency as he was a loose cannon. (A) hysterical (B) difficult (C) unpredictable (D) arrogant 3. The parents advised the girls to keep a civil tongue in the party. (A) maintain oral hygiene (B) relief the food (C) crack humorous jokes (D) speak politely 4. In order to aim a scholarship, Deepa is keeping her nose to the grindstone. (A) fight with a determination (B) drawing other’s attention (C) interfere in other’s affairs (D) concentrate in studies 5. The teacher treated Mohan’s explanation for delayed submission of project as “cock and bull story”. (A) probable story (B) credible idea (C) trust – worthy point (D) improbable tale