Sleeping mats for children must be one inch thick and must be: Discarded if torn

Repaired immediately if torn

Used by the same child each time

Cleaned and disinfected monthly

Option C, Used by the same child each time, is the right answer.

Explanation:

Used by the same child each time is the correct answer because if the same child uses the mat then there will be a lesser risk of infection or if the mat is used by several children then the infection and hygiene problem may occur. Moreover, other options like repairing mats, changing the mat if torn and disinfected monthly will also be considered but the concrete or primary step is to use one mat only for one child in order to save from infections.

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