Final answer:
Quick Sort is an algorithm that uses divide-and-conquer paradigm. It partitions the array around a pivot, then recursively sorts the sub-arrays. Binary Search also uses divide-and-conquer, but is not a sorting algorithm.
Step-by-step explanation:
An algorithm that uses the divide-and-conquer paradigm is a) Quick Sort. Divide-and-conquer is a strategy that solves a problem by breaking it down into smaller subproblems, solving them independently, and combining their solutions to solve the original problem. Quick Sort operates by selecting a 'pivot' element from the array and partitioning the other elements into two sub-arrays, according to whether they are less than or greater than the pivot. The sub-arrays are then sorted recursively.
Other options provided in the question do not operate on the divide-and-conquer principle: b) Linear Regression is a statistical method for modeling the relationship between a dependent variable and one or more independent variables; c) Binary Search does indeed use divide-and-conquer by repeatedly dividing a sorted array and narrowing down the search interval; d) Bubble Sort is a simple comparison-based sorting algorithm that repeatedly steps through the list, compares adjacent elements, and swaps them if they are in the wrong order.