Consider the following statements.
1. The Global Hunger Index(GHI) is a tool adapted and further developed by the International Food Policy Research Institute(IFPRI).
2. The index comprehensively measures and tracks global hunger.
3. The GHI incorporates three interlinked hunger-related indicators - the proportion of undernourished in the population, the prevalence of underweight in children, and the mortality rate of children.
Which of the statements is correct?