Indicators of human development are those that measure the overall well-being and standard of living of individuals in a society. Let's examine each option:

(A) Life Expectancy at Birth (years): This is an indicator of human development, as it reflects the quality of healthcare, living standards, and overall well-being of a population.

(B) Mean years of schooling (% aged 15 and above): Education is a crucial component of human development, and this indicator helps measure the educational attainment and human capital development in a society.

(C) Production (in metric tonnes): This is not directly related to human development but rather represents the level of industrial or agricultural production in an economy.

(D) People above the poverty line (percentage): This is an important indicator but is more related to poverty assessment and not a direct measure of human development.

(E) Infant Mortality Rate (per 1000 live births): This is a critical indicator of human development, reflecting the quality of healthcare, nutrition, and living conditions for infants.

Based on the analysis, the indicators of human development are:

(1) (A), (B), (E) Only