In the following questions, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

Children need to be taught the importance of hygiene early on so that it becomes a __(1)___. Children are the most __(2)___ to hygiene-related disorders like skin issues, rashes, infections, wounds, etc. Teach them early on about what to __(3)___. Teach them that taking a few __(4)___ measures to prevent infections and diseases is __(5)___.