Which among the following countries has been officially declared as maternal and neonatal tetanus free country by World Health Organisation (WHO) recently?
[C]Sri Lanka

The World Health Oraganistion (WHO) has officially declared India as Maternal and Neonatal Tetanus free country, i.e. mothers and newborns are free from tetanus at the time of birth. Before that, India was declared polio free country in 2014.