A country has four groups of people. The table below describes some social indicators of these group. Identify the group that is the most vulnerable.
Groups | Literacy rate (%) | Life Expectancy (years) | Unemployment rate (%) |
A | 74 | 82 | 5 |
B | 93 | 80 | 10 |
C | 63 | 78 | 15 |
D | 65 | 78 | 10 |