Given:
In Miss Rogers science class, 32%, 33%, 11%, 5% of students have A, B, D, F respectively.
To find:
The percent of the students have a C in Miss Rogers science class.
Solution:
We know that, sum of the percentages of all parts of pie chart is 100%. So,
Substituting the given values, we get

So, 19% of the students have a C in Miss Rogers science class.
Therefore, the correct option is C.