In quick sort, for sorting n elements, the (n/4)th smallest element is selected as pivot using an o(n) time algorithm. what is the worst case time complexity of the quick sort?

Leo is a recruitment executive for a large company. he has identified new labor resource requirements in both the marketing and production departments. what should be his first step in recruiting candidates for the positions? a. conduct background checks of candidates b. make job offers c. arrange interviews d. conduct reference checks e. place job ads on job sites