Among the socio-economic factors responsible for high birth rate in India, we may include
(i) Large scale poverty
(ii) High mortality rate of children of poor parents
(iii) Prevalence of under-age marriage
(iv) Adverse sex-ratio
1
(i) and (ii)
2
(i), (ii) and (iv)
3
(i), (iii) and (iv)
4
(i), (ii) and (iii)