Answer :
The total numer of people who voted was 50 and out of that, 5 chose grapefruit. Since percentages are based out of one hundred, we have to multiply 5/50 by 2 to get it out of 100. So 5/50· 2/2= 10/100 or C 10%. I hope this helps! :)
[tex]\rm 22+13+5+1+9=50~people \\ \\Grapefruit~lovers:~5 \\ \\ p\%=\frac{p}{100} \\ \\ \frac{5\not0*p}{10\not0}=5|*10 \\ \\ 5p=5*10 \\ \\ 5p=50 \\ \\ \bold{p=10\%} \\ \\ \boxed{\rm Answer:~C}[/tex]