Give the full forms of the following abbreviations:
$1.$ $\text{RCH}$
$2.$ $\text{WHO}$
$3.$ $\text{CDRI}$
$4.$ $\text{MTP}$
$5.$ $\text{MMR}$
$6.$ $\text{IMR}$

(N/A) $(1)$ $\text{RCH}$: $\text{Reproductive and Child Health care}$
$(2)$ $\text{WHO}$: $\text{World Health Organization}$
$(3)$ $\text{CDRI}$: $\text{Central Drug Research Institute}$
$(4)$ $\text{MTP}$: $\text{Medical Termination of Pregnancy}$
$(5)$ $\text{MMR}$: $\text{Maternal Mortality Rate}$
$(6)$ $\text{IMR}$: $\text{Infant Mortality Rate}$