IMR is infant mortality rate. This study helps to the the death rate of the infants in a particular region at a particular time. In one year the number of births in a given geographical area during the given year.
The number of deaths' of infants ( that is child below 1 year age) per 1,000 persons among the population of the given geographical area during the same year is calculated.
IMR is an important factor which indicates the health of the population, reflecting the various factors and conditions present in a particular region and it effect on the population.
The USA generally tried to remain neutral during the beginning of world War 1. therefore, i think the correct answer would be C, to remain military and politically neutral. hope this helps you
