In mathematics, the Vitali–Carathéodory theorem is a result in real analysis that shows that, under the conditions stated below, integrable functions can be approximated in L from above and below by lower- and upper-semicontinuous functions, respectively. It is named after Giuseppe Vitali and Constantin Carathéodory.

Choose your answer: based on the paragraph above can we conclude that " the Vitali–Carathéodory theorem is taught is highschool"?

Available choices:
 a). Yes;
 b). It's impossible to say;
 c). No;
I think the answer is
b).