Read the passage and answer the questions below.

Simple Happiness index (SHI) of a country is computed on the basis of three parameters: social support (S), freedom to life choices (F) and corruption perception (C). Each of these three parameters is measured on a scale of 0 to 8 (integers only). A country is then categorized based on the total score obtained by summing the scores of ail the three parameters, as shown in the following table:

Following diagram depicts the frequency distribution of the scores in S, F and C of 10 countries - Amda, Benga, Calla, Delma, Eppa, Varsa, Wanna, Xanda, Yanga and Zooma:

Further, the following are known: 1.Amda and Calla jointly have the lowest total score, 7, with identical scores in all the three parameters. 2.Zooma has a total score of 17. 3.All the 3 countries, which categorised as happy, have the highest score in exactly one parameter.