$\begin{array}{1 1} (a)\; \text{1-breakfast ,2-lunch,3-morning snack ,4-dinner,5-evening snack ,6- afternoon snack} \\ (b)\;\text{1-morning snack,2-lunch,3-evening snack,4-breakfast,5-afternoon snack,6-dinner} \\ (c)\; \text{1-morning snack,2-lunch,3-afternoon snack,4-dinner,5-evening snack,6-breakfast} \\ (d)\; \text{1-evening snack,2-breakfast ,3-afternoon snack,4-lunch,5-morning snack,6-dinner} \end{array}$