ANSWER:
[tex]\lbrace(C,H,W),(C,H,F),(C,B,W),(C,B,F),(C,S,W),(C,S,F),(V,H,W),(V,H,F),(V,B,W),(V,B,F),(V,S,W),(V,S,F)\rbrace[/tex]STEP-BY-STEP EXPLANATION:
We have the following variety:
[tex]\begin{gathered} \text{ For flavor: }\mleft\lbrace\text{C, V}\mright\rbrace \\ \text{ For sauces: }\mleft\lbrace H,B,S\mright\rbrace \\ \text{ For toppings: }\mleft\lbrace W,F\mright\rbrace \end{gathered}[/tex]So, sample space would be:
[tex]\mleft\lbrace(C,H,W),(C,H,F),(C,B,W),(C,B,F),(C,S,W),(C,S,F),(V,H,W),(V,H,F),(V,B,W),(V,B,F),(V,S,W),(V,S,F)\mright\rbrace[/tex]